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name="searchtype"><option value="all">All fields</option><option value="title">Title</option><option selected value="author">Author(s)</option><option value="abstract">Abstract</option><option value="comments">Comments</option><option value="journal_ref">Journal reference</option><option value="acm_class">ACM classification</option><option value="msc_class">MSC classification</option><option value="report_num">Report number</option><option value="paper_id">arXiv identifier</option><option value="doi">DOI</option><option value="orcid">ORCID</option><option value="license">License (URI)</option><option value="author_id">arXiv author ID</option><option value="help">Help pages</option><option value="full_text">Full text</option></select> <input id="query" name="query" type="text" value="Hauf, S"> <ul id="abstracts"><li><input checked id="abstracts-0" name="abstracts" type="radio" value="show"> <label for="abstracts-0">Show abstracts</label></li><li><input id="abstracts-1" name="abstracts" type="radio" value="hide"> <label for="abstracts-1">Hide abstracts</label></li></ul> </div> <div class="box field is-grouped is-grouped-multiline level-item"> <div class="control"> <span class="select is-small"> <select id="size" name="size"><option value="25">25</option><option selected value="50">50</option><option value="100">100</option><option value="200">200</option></select> </span> <label for="size">results per page</label>. </div> <div class="control"> <label for="order">Sort results by</label> <span class="select is-small"> <select id="order" name="order"><option selected value="-announced_date_first">Announcement date (newest first)</option><option value="announced_date_first">Announcement date (oldest first)</option><option value="-submitted_date">Submission date (newest first)</option><option value="submitted_date">Submission date (oldest first)</option><option value="">Relevance</option></select> </span> </div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.14474">arXiv:2410.14474</a> <span> [<a href="https://arxiv.org/pdf/2410.14474">pdf</a>, <a href="https://arxiv.org/ps/2410.14474">ps</a>, <a href="https://arxiv.org/format/2410.14474">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> On the Influence of Parallax Effects in Thick Silicon Sensors in Coherent Diffraction Imaging </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Hartmann%2C+R">Robert Hartmann</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Holl%2C+P">Peter Holl</a>, <a href="/search/physics?searchtype=author&query=R%C3%BCter%2C+T">Tonn R眉ter</a>, <a href="/search/physics?searchtype=author&query=Str%C3%BCder%2C+L">Lothar Str眉der</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2410.14474v1-abstract-short" style="display: inline;"> Structure determination is a key application of XFELs and 4th generation synchrotron sources, particularly using the coherent and pulsed X-ray radiation from X-ray free-electron lasers (XFEL). Scientific interest focuses on understanding the physical, biological, and chemical properties of samples at the nanometer scale. The X-rays from XFELs enable Coherent X-ray Diffraction Imaging (CXDI), where… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.14474v1-abstract-full').style.display = 'inline'; document.getElementById('2410.14474v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.14474v1-abstract-full" style="display: none;"> Structure determination is a key application of XFELs and 4th generation synchrotron sources, particularly using the coherent and pulsed X-ray radiation from X-ray free-electron lasers (XFEL). Scientific interest focuses on understanding the physical, biological, and chemical properties of samples at the nanometer scale. The X-rays from XFELs enable Coherent X-ray Diffraction Imaging (CXDI), where coherent X-rays irradiate a sample, and a far-field diffraction pattern is captured by an imaging detector. By the nature of the underlying physics, the resolution, at which the sample can be probed with the CXDI technique, is limited by the wavelength of the X-ray radiation and the exposure time if a detector can record the diffraction pattern to very large scattering angles. The resolution that can be achieved under real experimental conditions, depends strongly on additional parameters. The Shannon pixel size, linked to the detector resolution, the coherent dose that can be deposited in the sample without changing its structure, the image contrast, and the signal-to-noise ratio of the detected scattered radiation at high $q$, i.e. at high scattering angles $2螛$, have a strong influence on the resolution. The signal-to-noise ratio at high $q$ defines the "effective" maximum solid angle in a specific experiment setup up to which a detector can efficiently detect a signal and in consequence determines the achievable resolution. The image contrast defines how well bright image features can be distinguished from dark ones. We present the preliminary results of our study on the influence of the PSF on SNR, image contrast, position resolution, and achievable sample resolution for different pixel sizes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.14474v1-abstract-full').style.display = 'none'; document.getElementById('2410.14474v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 4 figures, submitted to the Journal of Physics: Conference Series (JPCS)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.04265">arXiv:2211.04265</a> <span> [<a href="https://arxiv.org/pdf/2211.04265">pdf</a>, <a href="https://arxiv.org/format/2211.04265">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1107/S1600577523000619">10.1107/S1600577523000619 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Photon shot-noise limited transient absorption soft X-ray spectroscopy at the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Guyader%2C+L+L">Lo茂c Le Guyader</a>, <a href="/search/physics?searchtype=author&query=Eschenlohr%2C+A">Andrea Eschenlohr</a>, <a href="/search/physics?searchtype=author&query=Beye%2C+M">Martin Beye</a>, <a href="/search/physics?searchtype=author&query=Schlotter%2C+W">William Schlotter</a>, <a href="/search/physics?searchtype=author&query=D%C3%B6ring%2C+F">Florian D枚ring</a>, <a href="/search/physics?searchtype=author&query=Carinan%2C+C">Cammille Carinan</a>, <a href="/search/physics?searchtype=author&query=Hickin%2C+D">David Hickin</a>, <a href="/search/physics?searchtype=author&query=Agarwal%2C+N">Naman Agarwal</a>, <a href="/search/physics?searchtype=author&query=Boeglin%2C+C">Christine Boeglin</a>, <a href="/search/physics?searchtype=author&query=Bovensiepen%2C+U">Uwe Bovensiepen</a>, <a href="/search/physics?searchtype=author&query=Buck%2C+J">Jens Buck</a>, <a href="/search/physics?searchtype=author&query=Carley%2C+R">Robert Carley</a>, <a href="/search/physics?searchtype=author&query=Castoldi%2C+A">Andrea Castoldi</a>, <a href="/search/physics?searchtype=author&query=D%27Elia%2C+A">Alessandro D'Elia</a>, <a href="/search/physics?searchtype=author&query=Delitz%2C+J">Jan-Torben Delitz</a>, <a href="/search/physics?searchtype=author&query=Ehsan%2C+W">Wajid Ehsan</a>, <a href="/search/physics?searchtype=author&query=Engel%2C+R">Robin Engel</a>, <a href="/search/physics?searchtype=author&query=Erdinger%2C+F">Florian Erdinger</a>, <a href="/search/physics?searchtype=author&query=Fangohr%2C+H">Hans Fangohr</a>, <a href="/search/physics?searchtype=author&query=Fischer%2C+P">Peter Fischer</a>, <a href="/search/physics?searchtype=author&query=Fiorini%2C+C">Carlo Fiorini</a>, <a href="/search/physics?searchtype=author&query=F%C3%B6hlisch%2C+A">Alexander F枚hlisch</a>, <a href="/search/physics?searchtype=author&query=Gelisio%2C+L">Luca Gelisio</a>, <a href="/search/physics?searchtype=author&query=Gensch%2C+M">Michael Gensch</a>, <a href="/search/physics?searchtype=author&query=Gerasimova%2C+N">Natalia Gerasimova</a> , et al. (39 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.04265v3-abstract-short" style="display: inline;"> Femtosecond transient soft X-ray Absorption Spectroscopy (XAS) is a very promising technique that can be employed at X-ray Free Electron Lasers (FELs) to investigate out-of-equilibrium dynamics for material and energy research. Here we present a dedicated setup for soft X-rays available at the Spectroscopy & Coherent Scattering (SCS) instrument at the European X-ray Free Electron Laser (EuXFEL). I… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.04265v3-abstract-full').style.display = 'inline'; document.getElementById('2211.04265v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.04265v3-abstract-full" style="display: none;"> Femtosecond transient soft X-ray Absorption Spectroscopy (XAS) is a very promising technique that can be employed at X-ray Free Electron Lasers (FELs) to investigate out-of-equilibrium dynamics for material and energy research. Here we present a dedicated setup for soft X-rays available at the Spectroscopy & Coherent Scattering (SCS) instrument at the European X-ray Free Electron Laser (EuXFEL). It consists of a beam-splitting off-axis zone plate (BOZ) used in transmission to create three copies of the incoming beam, which are used to measure the transmitted intensity through the excited and unexcited sample, as well as to monitor the incoming intensity. Since these three intensity signals are detected shot-by-shot and simultaneously, this setup allows normalized shot-by-shot analysis of the transmission. For photon detection, the DSSC imaging detector, which is capable of recording up to 800 images at 4.5 MHz frame rate during the FEL burst, is employed and allows approaching the photon shot-noise limit. We review the setup and its capabilities, as well as the online and offline analysis tools provided to users. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.04265v3-abstract-full').style.display = 'none'; document.getElementById('2211.04265v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Synchrotron Rad. (2023). 30, 284-300 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.06350">arXiv:2201.06350</a> <span> [<a href="https://arxiv.org/pdf/2201.06350">pdf</a>, <a href="https://arxiv.org/format/2201.06350">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1107/S1600577522008414">10.1107/S1600577522008414 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Megahertz-rate Ultrafast X-ray Scattering and Holographic Imaging at the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hagstr%C3%B6m%2C+N+Z">Nanna Zhou Hagstr枚m</a>, <a href="/search/physics?searchtype=author&query=Schneider%2C+M">Michael Schneider</a>, <a href="/search/physics?searchtype=author&query=Kerber%2C+N">Nico Kerber</a>, <a href="/search/physics?searchtype=author&query=Yaroslavtsev%2C+A">Alexander Yaroslavtsev</a>, <a href="/search/physics?searchtype=author&query=Parra%2C+E+B">Erick Burgos Parra</a>, <a href="/search/physics?searchtype=author&query=Beg%2C+M">Marijan Beg</a>, <a href="/search/physics?searchtype=author&query=Lang%2C+M">Martin Lang</a>, <a href="/search/physics?searchtype=author&query=G%C3%BCnther%2C+C+M">Christian M. G眉nther</a>, <a href="/search/physics?searchtype=author&query=Seng%2C+B">Boris Seng</a>, <a href="/search/physics?searchtype=author&query=Kammerbauer%2C+F">Fabian Kammerbauer</a>, <a href="/search/physics?searchtype=author&query=Popescu%2C+H">Horia Popescu</a>, <a href="/search/physics?searchtype=author&query=Pancaldi%2C+M">Matteo Pancaldi</a>, <a href="/search/physics?searchtype=author&query=Neeraj%2C+K">Kumar Neeraj</a>, <a href="/search/physics?searchtype=author&query=Polley%2C+D">Debanjan Polley</a>, <a href="/search/physics?searchtype=author&query=Jangid%2C+R">Rahul Jangid</a>, <a href="/search/physics?searchtype=author&query=Hrkac%2C+S+B">Stjepan B. Hrkac</a>, <a href="/search/physics?searchtype=author&query=Patel%2C+S+K+K">Sheena K. K. Patel</a>, <a href="/search/physics?searchtype=author&query=Ovcharenko%2C+S">Sergei Ovcharenko</a>, <a href="/search/physics?searchtype=author&query=Turenne%2C+D">Diego Turenne</a>, <a href="/search/physics?searchtype=author&query=Ksenzov%2C+D">Dmitriy Ksenzov</a>, <a href="/search/physics?searchtype=author&query=Boeglin%2C+C">Christine Boeglin</a>, <a href="/search/physics?searchtype=author&query=Pronin%2C+I">Igor Pronin</a>, <a href="/search/physics?searchtype=author&query=Baidakova%2C+M">Marina Baidakova</a>, <a href="/search/physics?searchtype=author&query=Schmising%2C+C+v+K">Clemens von Korff Schmising</a>, <a href="/search/physics?searchtype=author&query=Borchert%2C+M">Martin Borchert</a> , et al. (75 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2201.06350v2-abstract-short" style="display: inline;"> The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence, and pulse duration. All XFEL facilities built until recently provided X-ray pulses at a relatively low repetition rate, with limited data statistics. Here, we presen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.06350v2-abstract-full').style.display = 'inline'; document.getElementById('2201.06350v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.06350v2-abstract-full" style="display: none;"> The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence, and pulse duration. All XFEL facilities built until recently provided X-ray pulses at a relatively low repetition rate, with limited data statistics. Here, we present the results from the first megahertz repetition rate X-ray scattering experiments at the Spectroscopy and Coherent Scattering (SCS) instrument of the European XFEL. We illustrate the experimental capabilities that the SCS instrument offers, resulting from the operation at MHz repetition rates and the availability of the novel DSSC 2D imaging detector. Time-resolved magnetic X-ray scattering and holographic imaging experiments in solid state samples were chosen as representative, providing an ideal test-bed for operation at megahertz rates. Our results are relevant and applicable to any other non-destructive XFEL experiments in the soft X-ray range. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.06350v2-abstract-full').style.display = 'none'; document.getElementById('2201.06350v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 5 figures. Supplementary Information as ancillary file</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Synchrotron Rad. (2022), 29 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.07519">arXiv:2108.07519</a> <span> [<a href="https://arxiv.org/pdf/2108.07519">pdf</a>, <a href="https://arxiv.org/format/2108.07519">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/16/09/P09009">10.1088/1748-0221/16/09/P09009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Radiation Hardness Study of the ePix100 Sensor and ASIC under Direct Illumination at the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kla%C4%8Dkov%C3%A1%2C+I">I. Kla膷kov谩</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+K">K. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Blaj%2C+G">G. Blaj</a>, <a href="/search/physics?searchtype=author&query=Cascella%2C+M">M. Cascella</a>, <a href="/search/physics?searchtype=author&query=Cerantola%2C+V">V. Cerantola</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+C">C. Chang</a>, <a href="/search/physics?searchtype=author&query=Dragone%2C+A">A. Dragone</a>, <a href="/search/physics?searchtype=author&query=G%C3%B6de%2C+S">S. G枚de</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Kenney%2C+C">C. Kenney</a>, <a href="/search/physics?searchtype=author&query=Segal%2C+J">J. Segal</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=%C5%A0ag%C3%A1tov%C3%A1%2C+A">A. 艩ag谩tov谩</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.07519v1-abstract-short" style="display: inline;"> The ePix detector family provides multiple variants of hybrid pixel detectors to support a wide range of applications at free electron laser facilities. We present the results of a systematic study of the influence of radiation induced damage on the performance and lifetime of an ePix100a detector module using a direct attenuated beam of the EuXFEL at 9 keV photon energy and an average power of 10… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.07519v1-abstract-full').style.display = 'inline'; document.getElementById('2108.07519v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.07519v1-abstract-full" style="display: none;"> The ePix detector family provides multiple variants of hybrid pixel detectors to support a wide range of applications at free electron laser facilities. We present the results of a systematic study of the influence of radiation induced damage on the performance and lifetime of an ePix100a detector module using a direct attenuated beam of the EuXFEL at 9 keV photon energy and an average power of 10 $渭$W. An area of 20 x 20 pixels was irradiated with an average photon flux of approx. 7 x $10^{9}$ photons/s to a dose of approximately 760$\pm$65 kGy at the location of the Si/SiO$_2$ interfaces in the sensor. A dose dependent increase in both offset and noise of the ePix100a detector have been observed originating from an increase of the sensor leakage current. Moreover, we observed an effect directly after irradiation resulting in the saturation of individual pixels by their dark current. Changes in gain are evaluated one and half hours post irradiation and suggest damage to occur also on the ASIC level. Based on the obtained results, thresholds for beam parameters are deduced and the detector lifetime is estimated with respect to the requirements to the data quality in order to satisfy the scientific standards defined by the experiments. We conclude the detector can withstand a beam with an energy up to 1 $渭$J at a photon energy of 9 keV impacting on an area of 1 mm$^2$. The detector can be used without significant degradation of its performance for several years if the incident photon beam intensities do not exceed the detector's dynamic range by at least three orders of magnitude. Our results provide valuable input for the operation of the ePix100a detector at FEL facilities and for the design of future detector technology. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.07519v1-abstract-full').style.display = 'none'; document.getElementById('2108.07519v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">25 pages, 15 figures, accepted for publication by the Journal of Instrumentation</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.11443">arXiv:2011.11443</a> <span> [<a href="https://arxiv.org/pdf/2011.11443">pdf</a>, <a href="https://arxiv.org/ps/2011.11443">ps</a>, <a href="https://arxiv.org/format/2011.11443">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic and Molecular Clusters">physics.atm-clus</span> </div> </div> <p class="title is-5 mathjax"> The 1-Megapixel pnCCD Detector for the Small Quantum Systems Instrument at the European XFEL: System and Operation Aspects </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+K">Karim Ahmed</a>, <a href="/search/physics?searchtype=author&query=Ballak%2C+K">Kai-Erik Ballak</a>, <a href="/search/physics?searchtype=author&query=Danilevski%2C+C">Cyril Danilevski</a>, <a href="/search/physics?searchtype=author&query=Ekmed%C5%BEi%C4%87%2C+M">Marko Ekmed啪i膰</a>, <a href="/search/physics?searchtype=author&query=Fernandes%2C+B">Bruno Fernandes</a>, <a href="/search/physics?searchtype=author&query=Gessler%2C+P">Patrick Gessler</a>, <a href="/search/physics?searchtype=author&query=Hartmann%2C+R">Robert Hartmann</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Holl%2C+P">Peter Holl</a>, <a href="/search/physics?searchtype=author&query=Meyer%2C+M">Michael Meyer</a>, <a href="/search/physics?searchtype=author&query=Monta%C3%B1o%2C+J">Jacobo Monta帽o</a>, <a href="/search/physics?searchtype=author&query=M%C3%BCnnich%2C+A">Astrid M眉nnich</a>, <a href="/search/physics?searchtype=author&query=Ovcharenko%2C+Y">Yevheniy Ovcharenko</a>, <a href="/search/physics?searchtype=author&query=Rennhack%2C+N">Nils Rennhack</a>, <a href="/search/physics?searchtype=author&query=R%C3%BCter%2C+T">Tonn R眉ter</a>, <a href="/search/physics?searchtype=author&query=Rupp%2C+D">Daniela Rupp</a>, <a href="/search/physics?searchtype=author&query=Schlosser%2C+D">Dieter Schlosser</a>, <a href="/search/physics?searchtype=author&query=Setoodehnia%2C+K">Kiana Setoodehnia</a>, <a href="/search/physics?searchtype=author&query=Schmitt%2C+R">R眉diger Schmitt</a>, <a href="/search/physics?searchtype=author&query=Str%C3%BCder%2C+L">Lothar Str眉der</a>, <a href="/search/physics?searchtype=author&query=Tanyag%2C+R+M+P">Rico Mayro P. Tanyag</a>, <a href="/search/physics?searchtype=author&query=Ulmer%2C+A">Anatoli Ulmer</a>, <a href="/search/physics?searchtype=author&query=Yousef%2C+H">Hazem Yousef</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.11443v1-abstract-short" style="display: inline;"> The X-ray free-electron lasers that became available during the last decade, like the European XFEL (EuXFEL), place high demands on their instrumentation. Especially at low photon energies below $1\,\text{keV}$, detectors with high sensitivity, and consequently low noise and high quantum efficiency, are required to enable facility users to fully exploit the scientific potential of the photon sourc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.11443v1-abstract-full').style.display = 'inline'; document.getElementById('2011.11443v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.11443v1-abstract-full" style="display: none;"> The X-ray free-electron lasers that became available during the last decade, like the European XFEL (EuXFEL), place high demands on their instrumentation. Especially at low photon energies below $1\,\text{keV}$, detectors with high sensitivity, and consequently low noise and high quantum efficiency, are required to enable facility users to fully exploit the scientific potential of the photon source. A 1-Megapixel pnCCD detector with a $1024\times 1024$ pixel format has been installed and commissioned for imaging applications at the Nano-Sized Quantum System (NQS) station of the Small Quantum System (SQS) instrument at EuXFEL. The instrument is currently operating in the energy range between $0.5$ and $3\,\text{keV}$ and the NQS station is designed for investigations of the interaction of intense FEL pulses with clusters, nano-particles and small bio-molecules, by combining photo-ion and photo-electron spectroscopy with coherent diffraction imaging techniques. The core of the imaging detector is a pn-type charge coupled device (pnCCD) with a pixel pitch of $75\,渭\text{m}\times 75\,渭\text{m}$. Depending on the experimental scenario, the pnCCD enables imaging of single photons thanks to its very low electronic noise of $3$e$^-$ and high quantum efficiency. Here we present an overview on the EuXFEL pnCCD detector and the results from the commissioning and first user operation at the SQS experiment in June 2019. The detailed descriptions of the detector design and capabilities, its implementation at EuXFEL both mechanically and from the controls side as well as important data correction steps aim to provide useful background for users planning and analyzing experiments at EuXFEL and may serve as a benchmark for comparing and planning future endstations at other FELs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.11443v1-abstract-full').style.display = 'none'; document.getElementById('2011.11443v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 10 figures, submitted to the Journal of Synchrotron Radiation</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.10796">arXiv:1912.10796</a> <span> [<a href="https://arxiv.org/pdf/1912.10796">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Biological Physics">physics.bio-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s42005-020-0362-y">10.1038/s42005-020-0362-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Megahertz single-particle imaging at the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sobolev%2C+E">Egor Sobolev</a>, <a href="/search/physics?searchtype=author&query=Zolotarev%2C+S">Serguey Zolotarev</a>, <a href="/search/physics?searchtype=author&query=Giewekemeyer%2C+K">Klaus Giewekemeyer</a>, <a href="/search/physics?searchtype=author&query=Bielecki%2C+J">Johan Bielecki</a>, <a href="/search/physics?searchtype=author&query=Okamoto%2C+K">Kenta Okamoto</a>, <a href="/search/physics?searchtype=author&query=Reddy%2C+H+K+N">Hemanth K. N. Reddy</a>, <a href="/search/physics?searchtype=author&query=Andreasson%2C+J">Jakob Andreasson</a>, <a href="/search/physics?searchtype=author&query=Ayyer%2C+K">Kartik Ayyer</a>, <a href="/search/physics?searchtype=author&query=Barak%2C+I">Imrich Barak</a>, <a href="/search/physics?searchtype=author&query=Bari%2C+S">Sadia Bari</a>, <a href="/search/physics?searchtype=author&query=Barty%2C+A">Anton Barty</a>, <a href="/search/physics?searchtype=author&query=Bean%2C+R">Richard Bean</a>, <a href="/search/physics?searchtype=author&query=Bobkov%2C+S">Sergey Bobkov</a>, <a href="/search/physics?searchtype=author&query=Chapman%2C+H+N">Henry N. Chapman</a>, <a href="/search/physics?searchtype=author&query=Chojnowski%2C+G">Grzegorz Chojnowski</a>, <a href="/search/physics?searchtype=author&query=Daurer%2C+B+J">Benedikt J. Daurer</a>, <a href="/search/physics?searchtype=author&query=D%C3%B6rner%2C+K">Katerina D枚rner</a>, <a href="/search/physics?searchtype=author&query=Ekeberg%2C+T">Tomas Ekeberg</a>, <a href="/search/physics?searchtype=author&query=Fl%C3%BCckiger%2C+L">Leonie Fl眉ckiger</a>, <a href="/search/physics?searchtype=author&query=Galzitskaya%2C+O">Oxana Galzitskaya</a>, <a href="/search/physics?searchtype=author&query=Gelisio%2C+L">Luca Gelisio</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Hogue%2C+B+G">Brenda G. Hogue</a>, <a href="/search/physics?searchtype=author&query=Horke%2C+D+A">Daniel A. Horke</a>, <a href="/search/physics?searchtype=author&query=Hosseinizadeh%2C+A">Ahmad Hosseinizadeh</a> , et al. (38 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1912.10796v1-abstract-short" style="display: inline;"> The emergence of high repetition-rate X-ray free-electron lasers (XFELs) powered by superconducting accelerator technology enables the measurement of significantly more experimental data per day than was previously possible. The European XFEL will soon provide 27,000 pulses per second, more than two orders of magnitude more than any other XFEL. The increased pulse rate is a key enabling factor for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.10796v1-abstract-full').style.display = 'inline'; document.getElementById('1912.10796v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.10796v1-abstract-full" style="display: none;"> The emergence of high repetition-rate X-ray free-electron lasers (XFELs) powered by superconducting accelerator technology enables the measurement of significantly more experimental data per day than was previously possible. The European XFEL will soon provide 27,000 pulses per second, more than two orders of magnitude more than any other XFEL. The increased pulse rate is a key enabling factor for single-particle X-ray diffractive imaging, which relies on averaging the weak diffraction signal from single biological particles. Taking full advantage of this new capability requires that all experimental steps, from sample preparation and delivery to the acquisition of diffraction patterns, are compatible with the increased pulse repetition rate. Here, we show that single-particle imaging can be performed using X-ray pulses at megahertz repetition rates. The obtained results pave the way towards exploiting high repetition-rate X-ray free-electron lasers for single-particle imaging at their full repetition rate. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.10796v1-abstract-full').style.display = 'none'; document.getElementById('1912.10796v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Commun. Phys. 3, 97 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.01390">arXiv:1812.01390</a> <span> [<a href="https://arxiv.org/pdf/1812.01390">pdf</a>, <a href="https://arxiv.org/format/1812.01390">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/14/01/C01008">10.1088/1748-0221/14/01/C01008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Characterization of the ePix100a and the FastCCD Semiconductor Detectors for the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kla%C4%8Dkov%C3%A1%2C+I">I. Kla膷kov谩</a>, <a href="/search/physics?searchtype=author&query=Blaj%2C+G">G. Blaj</a>, <a href="/search/physics?searchtype=author&query=Denes%2C+P">P. Denes</a>, <a href="/search/physics?searchtype=author&query=Dragone%2C+A">A. Dragone</a>, <a href="/search/physics?searchtype=author&query=G%C3%B6de%2C+S">S. G枚de</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Januschek%2C+F">F. Januschek</a>, <a href="/search/physics?searchtype=author&query=Joseph%2C+J">J. Joseph</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1812.01390v2-abstract-short" style="display: inline;"> The European X-ray Free Electron Laser (EuXFEL) is a research facility providing spatially coherent X-ray flashes in the energy range from 0.25keV to 25keV of unprecedented brilliance and with unique time structure: X-ray pulses with a 4.5 MHz repetition rate arranged in trains with 2700 pulses every 100 ms. The facility operates three photon beamlines called SASE 1, SASE 2 and SASE 3. Each of the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.01390v2-abstract-full').style.display = 'inline'; document.getElementById('1812.01390v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.01390v2-abstract-full" style="display: none;"> The European X-ray Free Electron Laser (EuXFEL) is a research facility providing spatially coherent X-ray flashes in the energy range from 0.25keV to 25keV of unprecedented brilliance and with unique time structure: X-ray pulses with a 4.5 MHz repetition rate arranged in trains with 2700 pulses every 100 ms. The facility operates three photon beamlines called SASE 1, SASE 2 and SASE 3. Each of the beamlines is hosting two scientific experiments. The SASE 1 beamline started its user operation in September 2017, followed by successful first lasing at the SASE 2 beamline in May 2018. Early user experiments are planned to start in 2019 at this beamline, while early user experiments for the SASE 3 beamline are scheduled for the end of 2018. The quality of the experimental data will gain substantial benefits from an accurate characterization and calibration of the X-ray detectors. Supplementing high repetition rate detectors at MHz speeds, slower detectors such as the ePix100a and the FastCCD will be operated at the train repetition rate of 10 Hz. These 2D silicon pixelized detectors use fast parallel column-wise readout implemented as a CCD or as a hybrid pixel detector. In the following, characterization and analysis approaches for the FastCCD and the ePix100a detectors are discussed and the performance of the detectors is evaluated using appropriate state-of-the-art analysis techniques. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.01390v2-abstract-full').style.display = 'none'; document.getElementById('1812.01390v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages to be published in the proceedings of the 20th International Workshop on Radiation Imaging Detectors in Journal of Instrumentation</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.07108">arXiv:1703.07108</a> <span> [<a href="https://arxiv.org/pdf/1703.07108">pdf</a>, <a href="https://arxiv.org/format/1703.07108">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/11/12/C12051">10.1088/1748-0221/11/12/C12051 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Status of the laboratory infrastructure for detector calibration and characterization at the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Raab%2C+N">N. Raab</a>, <a href="/search/physics?searchtype=author&query=Ballak%2C+K+-">K. -E. Ballak</a>, <a href="/search/physics?searchtype=author&query=Dietze%2C+T">T. Dietze</a>, <a href="/search/physics?searchtype=author&query=Ekmedzi%C4%8D%2C+M">M. Ekmedzi膷</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Januschek%2C+F">F. Januschek</a>, <a href="/search/physics?searchtype=author&query=Kaukher%2C+A">A. Kaukher</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Lang%2C+P+M">P. M. Lang</a>, <a href="/search/physics?searchtype=author&query=M%C3%BCnnich%2C+A">A. M眉nnich</a>, <a href="/search/physics?searchtype=author&query=Schmitt%2C+R">R. Schmitt</a>, <a href="/search/physics?searchtype=author&query=Sztuk-Dambietz%2C+J">J. Sztuk-Dambietz</a>, <a href="/search/physics?searchtype=author&query=Turcato%2C+M">M. Turcato</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1703.07108v1-abstract-short" style="display: inline;"> The European X-ray Free Electron Laser (XFEL.EU) will provide unprecedented peak brilliance and ultra-short and spatially coherent X-ray pulses in an energy range of 0.25 to 25 keV . The pulse timing structure is unique with a burst of 2700 pulses of 100 fs length at a temporal distance of 220 ns followed by a 99.4 ms gap. To make optimal use of this timing structure and energy range a great varie… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.07108v1-abstract-full').style.display = 'inline'; document.getElementById('1703.07108v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.07108v1-abstract-full" style="display: none;"> The European X-ray Free Electron Laser (XFEL.EU) will provide unprecedented peak brilliance and ultra-short and spatially coherent X-ray pulses in an energy range of 0.25 to 25 keV . The pulse timing structure is unique with a burst of 2700 pulses of 100 fs length at a temporal distance of 220 ns followed by a 99.4 ms gap. To make optimal use of this timing structure and energy range a great variety of detectors are being developed for use at XFEL.EU, including 2D X-ray imaging cameras that are able to detect images at a rate of 4.5 MHz, provide dynamic ranges up to 10$^5$ photons per pulse per pixel under different operating conditions and covering a large range of angular resolution. In order to characterize, commission and calibrate this variety of detectors and for testing of detector prototypes the XFEL.EU detector group is building up an X-ray test laboratory that allows testing of detectors with X-ray photons under conditions that are as similar to the future beam line conditions at the XFEL.EU as is possible with laboratory sources. A total of four test environments provide the infrastructure for detector tests and calibration: two portable setups that utilize low power X-ray sources and radioactive isotopes, a test environment where a commercial high power X-ray generator is in use, and a pulsed X-ray/electron source which will provide pulses as short as 25 ns in XFEL.EU burst mode combined with target anodes of different materials. The status of the test environments, three of which are already in use while one is in commissioning phase, will be presented as well as first results from performance tests and characterization of the sources. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.07108v1-abstract-full').style.display = 'none'; document.getElementById('1703.07108v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 7 figures including corrected captions with included copyright information also to be published in an erratum</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Instrum.: Conf. Ser. 11 (12), C12051 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1612.03605">arXiv:1612.03605</a> <span> [<a href="https://arxiv.org/pdf/1612.03605">pdf</a>, <a href="https://arxiv.org/format/1612.03605">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Performance of the LBNL FastCCD for the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Januschek%2C+F">Friederike Januschek</a>, <a href="/search/physics?searchtype=author&query=Klackova%2C+I">Ivana Klackova</a>, <a href="/search/physics?searchtype=author&query=Andresen%2C+N">Nord Andresen</a>, <a href="/search/physics?searchtype=author&query=Denes%2C+P">Peter Denes</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Joseph%2C+J">John Joseph</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Tindall%2C+C">Craig Tindall</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1612.03605v1-abstract-short" style="display: inline;"> The European X-ray Free Electron Laser (XFEL.EU) is currently being commissioned in Schenefeld, Germany. From 2017 onwards it will provide spatially coherent X-rays of energies between 0.25\,keV and 25\,keV with a unique timing structure. One of the detectors foreseen at XFEL.EU for the soft X-ray regime (energies below 6\,keV) is a quasi column-parallel readout FastCCD developed by Lawrence Berke… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.03605v1-abstract-full').style.display = 'inline'; document.getElementById('1612.03605v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1612.03605v1-abstract-full" style="display: none;"> The European X-ray Free Electron Laser (XFEL.EU) is currently being commissioned in Schenefeld, Germany. From 2017 onwards it will provide spatially coherent X-rays of energies between 0.25\,keV and 25\,keV with a unique timing structure. One of the detectors foreseen at XFEL.EU for the soft X-ray regime (energies below 6\,keV) is a quasi column-parallel readout FastCCD developed by Lawrence Berkeley National Lab (LBNL) specifically for the XFEL.EU requirements. Its sensor has 1920$\times$960 pixels of 30\,$渭$m $\times$30\,$渭$m size with a beam hole in the middle of the sensor. The camera can be operated in full frame and frame store mode. With the FastCCD a frame rate of up to 120~fps can be achieved, but at XFEL.EU the camera settings are optimized for the 10\,Hz XFEL bunch-mode. The detector has been delivered to XFEL.EU. Results of the performance tests and calibration done using the XFEL.EU detector calibration infrastructure are presented quantifying noise level, gain and energy resolution. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.03605v1-abstract-full').style.display = 'none'; document.getElementById('1612.03605v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 December, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">3 pages, 5 figures, 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD, to be published in the conference record</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.01794">arXiv:1601.01794</a> <span> [<a href="https://arxiv.org/pdf/1601.01794">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Integrated Detector Control and Calibration Processing at the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=M%C3%BCnnich%2C+A">A. M眉nnich</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Heisen%2C+B+C">B. C. Heisen</a>, <a href="/search/physics?searchtype=author&query=Januschek%2C+F">F. Januschek</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Lang%2C+P+M">P. M. Lang</a>, <a href="/search/physics?searchtype=author&query=Raab%2C+N">N. Raab</a>, <a href="/search/physics?searchtype=author&query=R%C3%BCter%2C+T">T. R眉ter</a>, <a href="/search/physics?searchtype=author&query=Sztuk-Dambietz%2C+J">J. Sztuk-Dambietz</a>, <a href="/search/physics?searchtype=author&query=Turcato%2C+M">M. Turcato</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1601.01794v1-abstract-short" style="display: inline;"> The European X-ray Free Electron Laser is a high-intensity X-ray light source currently being constructed in the area of Hamburg, that will provide spatially coherent X-rays in the energy range between $0.25\,\mathrm{keV}$ and $25\,\mathrm{keV}$. The machine will deliver $10\,\mathrm{trains/s}$, consisting of up to $2700\,\mathrm{pulses}$, with a $4.5\,\mathrm{MHz}$ repetition rate. The LPD, DSSC… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.01794v1-abstract-full').style.display = 'inline'; document.getElementById('1601.01794v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.01794v1-abstract-full" style="display: none;"> The European X-ray Free Electron Laser is a high-intensity X-ray light source currently being constructed in the area of Hamburg, that will provide spatially coherent X-rays in the energy range between $0.25\,\mathrm{keV}$ and $25\,\mathrm{keV}$. The machine will deliver $10\,\mathrm{trains/s}$, consisting of up to $2700\,\mathrm{pulses}$, with a $4.5\,\mathrm{MHz}$ repetition rate. The LPD, DSSC and AGIPD detectors are being developed to provide high dynamic-range Mpixel imaging capabilities at the mentioned repetition rates. A consequence of these detector characteristics is that they generate raw data volumes of up to $15\,\mathrm{Gbyte/s}$. In addition the detector's on-sensor memory-cell and multi-/non-linear gain architectures pose unique challenges in data correction and calibration, requiring online access to operating conditions and control settings. We present how these challenges are addressed within XFEL's control and analysis framework Karabo, which integrates access to hardware conditions, acquisition settings (also using macros) and distributed computing. Implementation of control and calibration software is mainly in Python, using self-optimizing (py) CUDA code, numpy and iPython parallels to achieve near-real time performance for calibration application. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.01794v1-abstract-full').style.display = 'none'; document.getElementById('1601.01794v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Proceeding ICALEPS 2015</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> WEPGF050 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1502.01536">arXiv:1502.01536</a> <span> [<a href="https://arxiv.org/pdf/1502.01536">pdf</a>, <a href="https://arxiv.org/format/1502.01536">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/10/04/C04022">10.1088/1748-0221/10/04/C04022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> X-CSIT: a toolkit for simulating 2D pixel detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Joy%2C+A">Ashley Joy</a>, <a href="/search/physics?searchtype=author&query=Wing%2C+M">Matthew Wing</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=R%C3%BCter%2C+T">Tonn R眉ter</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1502.01536v1-abstract-short" style="display: inline;"> A new, modular toolkit for creating simulations of 2D X-ray pixel detectors, X-CSIT (X-ray Camera SImulation Toolkit), is being developed. The toolkit uses three sequential simulations of detector processes which model photon interactions, electron charge cloud spreading with a high charge density plasma model and common electronic components used in detector readout. In addition, because of the w… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1502.01536v1-abstract-full').style.display = 'inline'; document.getElementById('1502.01536v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1502.01536v1-abstract-full" style="display: none;"> A new, modular toolkit for creating simulations of 2D X-ray pixel detectors, X-CSIT (X-ray Camera SImulation Toolkit), is being developed. The toolkit uses three sequential simulations of detector processes which model photon interactions, electron charge cloud spreading with a high charge density plasma model and common electronic components used in detector readout. In addition, because of the wide variety in pixel detector design, X-CSIT has been designed as a modular platform so that existing functions can be modified or additional functionality added if the specific design of a detector demands it. X-CSIT will be used to create simulations of the detectors at the European XFEL, including three bespoke 2D detectors: the Adaptive Gain Integrating Pixel Detector (AGIPD), Large Pixel Detector (LPD) and DePFET Sensor with Signal Compression (DSSC). These simulations will be used by the detector group at the European XFEL for detector characterisation and calibration. For this purpose, X-CSIT has been integrated into the European XFEL's software framework, Karabo. This will further make it available to users to aid with the planning of experiments and analysis of data. In addition, X-CSIT will be released as a standalone, open source version for other users, collaborations and groups intending to create simulations of their own detectors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1502.01536v1-abstract-full').style.display = 'none'; document.getElementById('1502.01536v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 February, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 7 Figures, PIXEL 2014 Conference</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1407.6040">arXiv:1407.6040</a> <span> [<a href="https://arxiv.org/pdf/1407.6040">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Geant4 and beyond: recent progress in precision physics modeling </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Batic%2C+M">Matej Batic</a>, <a href="/search/physics?searchtype=author&query=Begalli%2C+M">Marcia Begalli</a>, <a href="/search/physics?searchtype=author&query=Han%2C+M+C">Min Cheol Han</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Hoff%2C+G">Gabriela Hoff</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">Chan Hyeong Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+H+S">Han Sung Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+S+H">Sung Hun Kim</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">Maria Grazia Pia</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">Paolo Saracco</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">Georg Weidenspointner</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1407.6040v1-abstract-short" style="display: inline;"> This extended abstract briefly summarizes ongoing research activity on the evaluation and experimental validation of physics methods for photon and electron transport. The analysis includes physics models currently implemented in Geant4 as well as modeling methods used in other Monte Carlo codes, or not yet considered in general purpose Monte Carlo simulation systems. The validation of simulation… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1407.6040v1-abstract-full').style.display = 'inline'; document.getElementById('1407.6040v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1407.6040v1-abstract-full" style="display: none;"> This extended abstract briefly summarizes ongoing research activity on the evaluation and experimental validation of physics methods for photon and electron transport. The analysis includes physics models currently implemented in Geant4 as well as modeling methods used in other Monte Carlo codes, or not yet considered in general purpose Monte Carlo simulation systems. The validation of simulation models is performed with the support of rigorous statistical methods, which involve goodness-of-fit tests followed by categorical analysis. All results are quantitative, and are fully documented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1407.6040v1-abstract-full').style.display = 'none'; document.getElementById('1407.6040v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To be published in the Proc. of RPSD 2014 (Radiation Protection and Shielding)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1401.1660">arXiv:1401.1660</a> <span> [<a href="https://arxiv.org/pdf/1401.1660">pdf</a>, <a href="https://arxiv.org/format/1401.1660">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> </div> </div> <p class="title is-5 mathjax"> Validation of Compton Scattering Monte Carlo Simulation Models </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">Georg Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Batic%2C+M">Matej Batic</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Hoff%2C+G">Gabriela Hoff</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">Maria Grazia Pia</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">Paolo Saracco</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1401.1660v1-abstract-short" style="display: inline;"> Several models for the Monte Carlo simulation of Compton scattering on electrons are quantitatively evaluated with respect to a large collection of experimental data retrieved from the literature. Some of these models are currently implemented in general purpose Monte Carlo systems; some have been implemented and evaluated for possible use in Monte Carlo particle transport for the first time in th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1401.1660v1-abstract-full').style.display = 'inline'; document.getElementById('1401.1660v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1401.1660v1-abstract-full" style="display: none;"> Several models for the Monte Carlo simulation of Compton scattering on electrons are quantitatively evaluated with respect to a large collection of experimental data retrieved from the literature. Some of these models are currently implemented in general purpose Monte Carlo systems; some have been implemented and evaluated for possible use in Monte Carlo particle transport for the first time in this study. Here we present first and preliminary results concerning total and differential Compton scattering cross sections. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1401.1660v1-abstract-full').style.display = 'none'; document.getElementById('1401.1660v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 3 figures, to be published in the Proceedings of IEEE Nuclear Science Symposium 2013</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1311.1688">arXiv:1311.1688</a> <span> [<a href="https://arxiv.org/pdf/1311.1688">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/8/11/C11001">10.1088/1748-0221/8/11/C11001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Performance of an LPD prototype detector at MHz frame rates under Synchrotron and FEL radiation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Koch%2C+A">Andreas Koch</a>, <a href="/search/physics?searchtype=author&query=Hart%2C+M">Matthew Hart</a>, <a href="/search/physics?searchtype=author&query=Nicholls%2C+T">Tim Nicholls</a>, <a href="/search/physics?searchtype=author&query=Angelsen%2C+C">Christian Angelsen</a>, <a href="/search/physics?searchtype=author&query=Coughlan%2C+J">John Coughlan</a>, <a href="/search/physics?searchtype=author&query=French%2C+M">Marcus French</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Sztuk-Dambietz%2C+J">Jolanta Sztuk-Dambietz</a>, <a href="/search/physics?searchtype=author&query=Turcato%2C+M">Monica Turcato</a>, <a href="/search/physics?searchtype=author&query=Carini%2C+G+A">Gabriella A. Carini</a>, <a href="/search/physics?searchtype=author&query=Chollet%2C+M">Matthieu Chollet</a>, <a href="/search/physics?searchtype=author&query=Herrmann%2C+S+C">Sven C. Herrmann</a>, <a href="/search/physics?searchtype=author&query=Lemke%2C+H+T">Henrik T. Lemke</a>, <a href="/search/physics?searchtype=author&query=Nelson%2C+S">Silke Nelson</a>, <a href="/search/physics?searchtype=author&query=Song%2C+S">Sanghoon Song</a>, <a href="/search/physics?searchtype=author&query=Weaver%2C+M">Matt Weaver</a>, <a href="/search/physics?searchtype=author&query=Zhu%2C+D">Diling Zhu</a>, <a href="/search/physics?searchtype=author&query=Meents%2C+A">Alke Meents</a>, <a href="/search/physics?searchtype=author&query=Fischer%2C+P">Pontus Fischer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1311.1688v1-abstract-short" style="display: inline;"> A MHz frame rate X-ray area detector (LPD - Large Pixel Detector) is under development by the Rutherford Appleton Laboratory for the European XFEL. The detector will have 1 million pixels and allows analogue storage of 512 images taken at 4.5 MHz in the detector front end. The LPD detector has 500 mm thick silicon sensor tiles that are bump bonded to a readout ASIC. The ASICs preamplifier provides… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.1688v1-abstract-full').style.display = 'inline'; document.getElementById('1311.1688v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1311.1688v1-abstract-full" style="display: none;"> A MHz frame rate X-ray area detector (LPD - Large Pixel Detector) is under development by the Rutherford Appleton Laboratory for the European XFEL. The detector will have 1 million pixels and allows analogue storage of 512 images taken at 4.5 MHz in the detector front end. The LPD detector has 500 mm thick silicon sensor tiles that are bump bonded to a readout ASIC. The ASICs preamplifier provides relatively low noise at high speed which results in a high dynamic range of 10^5 photons over an energy range of 5-20 keV. Small scale prototypes of 32x256 pixels (LPD 2-Tile detector) and 256x256 pixels (LPD supermodule detector) are now available for X-ray tests. The performance of prototypes of the detector is reported for first tests under synchrotron radiation (PETRA III at DESY) and Free-Electron-Laser radiation (LCLS at SLAC). The initial performance of the detector in terms of signal range and noise, radiation hardness and spatial and temporal response are reported. The main result is that the 4.5 MHz sampling detection chain is reliably working, including the analogue on-chip memory concept. The detector is at least radiation hard up to 5 MGy at 12 keV. In addition the multiple gain concept has been demonstrated over a dynamic range to 10^4 at 12 keV with a readout noise equivalent to <1 photon rms in its most sensitive mode. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.1688v1-abstract-full').style.display = 'none'; document.getElementById('1311.1688v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2013_JINST_8_C11001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1307.1985">arXiv:1307.1985</a> <span> [<a href="https://arxiv.org/pdf/1307.1985">pdf</a>, <a href="https://arxiv.org/ps/1307.1985">ps</a>, <a href="https://arxiv.org/format/1307.1985">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.112.091302">10.1103/PhysRevLett.112.091302 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> CAST solar axion search with 3^He buffer gas: Closing the hot dark matter gap </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Arik%2C+M">M. Arik</a>, <a href="/search/physics?searchtype=author&query=Aune%2C+S">S. Aune</a>, <a href="/search/physics?searchtype=author&query=Barth%2C+K">K. Barth</a>, <a href="/search/physics?searchtype=author&query=Belov%2C+A">A. Belov</a>, <a href="/search/physics?searchtype=author&query=Borghi%2C+S">S. Borghi</a>, <a href="/search/physics?searchtype=author&query=Brauninger%2C+H">H. Brauninger</a>, <a href="/search/physics?searchtype=author&query=Cantatore%2C+G">G. Cantatore</a>, <a href="/search/physics?searchtype=author&query=Carmona%2C+J+M">J. M. Carmona</a>, <a href="/search/physics?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a>, <a href="/search/physics?searchtype=author&query=Collar%2C+J+I">J. I. Collar</a>, <a href="/search/physics?searchtype=author&query=Da+Riva%2C+E">E. Da Riva</a>, <a href="/search/physics?searchtype=author&query=Dafni%2C+T">T. Dafni</a>, <a href="/search/physics?searchtype=author&query=Davenport%2C+M">M. Davenport</a>, <a href="/search/physics?searchtype=author&query=Eleftheriadis%2C+C">C. Eleftheriadis</a>, <a href="/search/physics?searchtype=author&query=Elias%2C+N">N. Elias</a>, <a href="/search/physics?searchtype=author&query=Fanourakis%2C+G">G. Fanourakis</a>, <a href="/search/physics?searchtype=author&query=Ferrer-Ribas%2C+E">E. Ferrer-Ribas</a>, <a href="/search/physics?searchtype=author&query=Friedrich%2C+P">P. Friedrich</a>, <a href="/search/physics?searchtype=author&query=Galan%2C+J">J. Galan</a>, <a href="/search/physics?searchtype=author&query=Garcia%2C+J+A">J. A. Garcia</a>, <a href="/search/physics?searchtype=author&query=Gardikiotis%2C+A">A. Gardikiotis</a>, <a href="/search/physics?searchtype=author&query=Garza%2C+J+G">J. G. Garza</a>, <a href="/search/physics?searchtype=author&query=Gazis%2C+E+N">E. N. Gazis</a>, <a href="/search/physics?searchtype=author&query=Geralis%2C+T">T. Geralis</a>, <a href="/search/physics?searchtype=author&query=Georgiopoulou%2C+E">E. Georgiopoulou</a> , et al. (50 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1307.1985v2-abstract-short" style="display: inline;"> The CERN Axion Solar Telescope (CAST) has finished its search for solar axions with 3^He buffer gas, covering the search range 0.64 eV < m_a <1.17 eV. This closes the gap to the cosmological hot dark matter limit and actually overlaps with it. From the absence of excess X-rays when the magnet was pointing to the Sun we set a typical upper limit on the axion-photon coupling of g_ag < 3.3 x 10^{-10}… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.1985v2-abstract-full').style.display = 'inline'; document.getElementById('1307.1985v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1307.1985v2-abstract-full" style="display: none;"> The CERN Axion Solar Telescope (CAST) has finished its search for solar axions with 3^He buffer gas, covering the search range 0.64 eV < m_a <1.17 eV. This closes the gap to the cosmological hot dark matter limit and actually overlaps with it. From the absence of excess X-rays when the magnet was pointing to the Sun we set a typical upper limit on the axion-photon coupling of g_ag < 3.3 x 10^{-10} GeV^{-1} at 95% CL, with the exact value depending on the pressure setting. Future direct solar axion searches will focus on increasing the sensitivity to smaller values of g_a, for example by the currently discussed next generation helioscope IAXO. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.1985v2-abstract-full').style.display = 'none'; document.getElementById('1307.1985v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 September, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 2 figures. Last version uploaded</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 112, 091302 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1307.0996">arXiv:1307.0996</a> <span> [<a href="https://arxiv.org/pdf/1307.0996">pdf</a>, <a href="https://arxiv.org/ps/1307.0996">ps</a>, <a href="https://arxiv.org/format/1307.0996">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1109/TNS.2013.2270894">10.1109/TNS.2013.2270894 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Radioactive Decays in Geant4 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Bati%C4%8D%2C+M">Matej Bati膷</a>, <a href="/search/physics?searchtype=author&query=Bell%2C+Z+W">Zane W. Bell</a>, <a href="/search/physics?searchtype=author&query=Hoffmann%2C+D+H+H">Dieter H. H. Hoffmann</a>, <a href="/search/physics?searchtype=author&query=Lang%2C+P+M">Philipp M. Lang</a>, <a href="/search/physics?searchtype=author&query=Neff%2C+S">Stephan Neff</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">Maria Grazia Pia</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">Georg Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">Andreas Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1307.0996v1-abstract-short" style="display: inline;"> The simulation of radioactive decays is a common task in Monte-Carlo systems such as Geant4. Usually, a system either uses an approach focusing on the simulations of every individual decay or an approach which simulates a large number of decays with a focus on correct overall statistics. The radioactive decay package presented in this work permits, for the first time, the use of both methods withi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.0996v1-abstract-full').style.display = 'inline'; document.getElementById('1307.0996v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1307.0996v1-abstract-full" style="display: none;"> The simulation of radioactive decays is a common task in Monte-Carlo systems such as Geant4. Usually, a system either uses an approach focusing on the simulations of every individual decay or an approach which simulates a large number of decays with a focus on correct overall statistics. The radioactive decay package presented in this work permits, for the first time, the use of both methods within the same simulation framework - Geant4. The accuracy of the statistical approach in our new package, RDM-extended, and that of the existing Geant4 per-decay implementation (original RDM), which has also been refactored, are verified against the ENSDF database. The new verified package is beneficial for a wide range of experimental scenarios, as it enables researchers to choose the most appropriate approach for their Geant4-based application. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.0996v1-abstract-full').style.display = 'none'; document.getElementById('1307.0996v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1306.5129">arXiv:1306.5129</a> <span> [<a href="https://arxiv.org/pdf/1306.5129">pdf</a>, <a href="https://arxiv.org/ps/1306.5129">ps</a>, <a href="https://arxiv.org/format/1306.5129">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1109/TNS.2013.2271047">10.1109/TNS.2013.2271047 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Validation of Geant4-based Radioactive Decay Simulation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Bati%C4%8D%2C+M">Matej Bati膷</a>, <a href="/search/physics?searchtype=author&query=Bell%2C+Z+W">Zane W. Bell</a>, <a href="/search/physics?searchtype=author&query=Hoffmann%2C+D+H+H">Dieter H. H. Hoffmann</a>, <a href="/search/physics?searchtype=author&query=Lang%2C+P+M">Philipp M. Lang</a>, <a href="/search/physics?searchtype=author&query=Neff%2C+S">Stephan Neff</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">Maria Grazia Pia</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">Georg Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">Andreas Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1306.5129v1-abstract-short" style="display: inline;"> Radioactive decays are of concern in a wide variety of applications using Monte-Carlo simulations. In order to properly estimate the quality of such simulations, knowledge of the accuracy of the decay simulation is required. We present a validation of the original Geant4 Radioactive Decay Module, which uses a per-decay sampling approach, and of an extended package for Geant4-based simulation of ra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.5129v1-abstract-full').style.display = 'inline'; document.getElementById('1306.5129v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1306.5129v1-abstract-full" style="display: none;"> Radioactive decays are of concern in a wide variety of applications using Monte-Carlo simulations. In order to properly estimate the quality of such simulations, knowledge of the accuracy of the decay simulation is required. We present a validation of the original Geant4 Radioactive Decay Module, which uses a per-decay sampling approach, and of an extended package for Geant4-based simulation of radioactive decays, which, in addition to being able to use a refactored per-decay sampling, is capable of using a statistical sampling approach. The validation is based on measurements of calibration isotope sources using a high purity Germanium (HPGe) detector; no calibration of the simulation is performed. For the considered validation experiment equivalent simulation accuracy can be achieved with per-decay and statistical sampling. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.5129v1-abstract-full').style.display = 'none'; document.getElementById('1306.5129v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1304.6604">arXiv:1304.6604</a> <span> [<a href="https://arxiv.org/pdf/1304.6604">pdf</a>, <a href="https://arxiv.org/ps/1304.6604">ps</a>, <a href="https://arxiv.org/format/1304.6604">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1117/12.2020773">10.1117/12.2020773 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Status of detector development for the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sztuk-Dambietz%2C+J">Jolanta Sztuk-Dambietz</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Koch%2C+A">Andreas Koch</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Turcato%2C+M">Monica Turcato</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1304.6604v1-abstract-short" style="display: inline;"> The European X-ray Free Electron Laser (XFEL.EU) will provide as-yet-unrivaled peak brilliance and ultra-short pulses of spatially coherent X-rays with a pulse length of less than 100 fs in the energy range between 0.25 and 25 keV. The high radiation intensity and ultra-short pulse duration will open a window for novel scientific techniques and will allow to explore new phenomena in biology, chemi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.6604v1-abstract-full').style.display = 'inline'; document.getElementById('1304.6604v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1304.6604v1-abstract-full" style="display: none;"> The European X-ray Free Electron Laser (XFEL.EU) will provide as-yet-unrivaled peak brilliance and ultra-short pulses of spatially coherent X-rays with a pulse length of less than 100 fs in the energy range between 0.25 and 25 keV. The high radiation intensity and ultra-short pulse duration will open a window for novel scientific techniques and will allow to explore new phenomena in biology, chemistry, material science, as well as matter at high energy density, atomic, ion and molecular physics. The variety of scientific applications and especially the unique XFEL.EU time structure require adequate instrumentation to be developed in order to exploit the full potential of the light source. To make optimal use of the unprecedented capabilities of the European XFEL and master these vast technological challenges, the European XFEL GmbH has started a detector R&D program. The technology concepts of the detector system presently under development are complementary in their performance and will cover the requirements of a large fraction of the scientific applications envisaged for the XFEL.EU facility. The actual status of the detector development projects which includes ultra-fast 2D imaging detectors, low repetition rate 2D detectors as well as strip detectors for e.g. spectroscopy applications and the infrastructure for the detectors' calibration and tests will be presented. Furthermore, an overview of the forthcoming implementation phase of the European XFEL in terms of detector R&D will be given. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.6604v1-abstract-full').style.display = 'none'; document.getElementById('1304.6604v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Prepared for the Proccedings of SPIE Optics + Optoelectronics Conference, Prague, Czech Republic, 15th - 18th April 2013</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1209.6002">arXiv:1209.6002</a> <span> [<a href="https://arxiv.org/pdf/1209.6002">pdf</a>, <a href="https://arxiv.org/format/1209.6002">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/396/2/022039">10.1088/1742-6596/396/2/022039 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Algorithms and parameters for improved accuracy in physics data libraries </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Batic%2C+M">M. Batic</a>, <a href="/search/physics?searchtype=author&query=Han%2C+M">M. Han</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Hoff%2C+G">G. Hoff</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">C. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">M. G. Pia</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">P. Saracco</a>, <a href="/search/physics?searchtype=author&query=Seo%2C+H">H. Seo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1209.6002v1-abstract-short" style="display: inline;"> Recent efforts for the improvement of the accuracy of physics data libraries used in particle transport are summarized. Results are reported about a large scale validation analysis of atomic parameters used by major Monte Carlo systems (Geant4, EGS, MCNP, Penelope etc.); their contribution to the accuracy of simulation observables is documented. The results of this study motivated the development… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.6002v1-abstract-full').style.display = 'inline'; document.getElementById('1209.6002v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1209.6002v1-abstract-full" style="display: none;"> Recent efforts for the improvement of the accuracy of physics data libraries used in particle transport are summarized. Results are reported about a large scale validation analysis of atomic parameters used by major Monte Carlo systems (Geant4, EGS, MCNP, Penelope etc.); their contribution to the accuracy of simulation observables is documented. The results of this study motivated the development of a new atomic data management software package, which optimizes the provision of state-of-the-art atomic parameters to physics models. The effect of atomic parameters on the simulation of radioactive decay is illustrated. Ideas and methods to deal with physics models applicable to different energy ranges in the production of data libraries, rather than at runtime, are discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.6002v1-abstract-full').style.display = 'none'; document.getElementById('1209.6002v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 September, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To be published in the Proc. of CHEP (Computing in High Energy Physics) 2012</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1209.5989">arXiv:1209.5989</a> <span> [<a href="https://arxiv.org/pdf/1209.5989">pdf</a>, <a href="https://arxiv.org/format/1209.5989">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/396/2/022038">10.1088/1742-6596/396/2/022038 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Refactoring, reengineering and evolution: paths to Geant4 uncertainty quantification and performance improvement </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Batic%2C+M">M. Batic</a>, <a href="/search/physics?searchtype=author&query=Begalli%2C+M">M. Begalli</a>, <a href="/search/physics?searchtype=author&query=Han%2C+M">M. Han</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Hoff%2C+G">G. Hoff</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">C. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">M. G. Pia</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">P. Saracco</a>, <a href="/search/physics?searchtype=author&query=Seo%2C+H">H. Seo</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">G. Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">A. Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1209.5989v1-abstract-short" style="display: inline;"> Ongoing investigations for the improvement of Geant4 accuracy and computational performance resulting by refactoring and reengineering parts of the code are discussed. Issues in refactoring that are specific to the domain of physics simulation are identified and their impact is elucidated. Preliminary quantitative results are reported. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1209.5989v1-abstract-full" style="display: none;"> Ongoing investigations for the improvement of Geant4 accuracy and computational performance resulting by refactoring and reengineering parts of the code are discussed. Issues in refactoring that are specific to the domain of physics simulation are identified and their impact is elucidated. Preliminary quantitative results are reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.5989v1-abstract-full').style.display = 'none'; document.getElementById('1209.5989v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 September, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To be published in the Proc. CHEP (Computing in High Energy Physics) 2012</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1111.2179">arXiv:1111.2179</a> <span> [<a href="https://arxiv.org/pdf/1111.2179">pdf</a>, <a href="https://arxiv.org/ps/1111.2179">ps</a>, <a href="https://arxiv.org/format/1111.2179">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1142/9789814405072_0155">10.1142/9789814405072_0155 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Quantifying the unknown: issues in simulation validation and their experimental impact </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">M. G. Pia</a>, <a href="/search/physics?searchtype=author&query=Batic%2C+M">M. Batic</a>, <a href="/search/physics?searchtype=author&query=Hoff%2C+G">G. Hoff</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">P. Saracco</a>, <a href="/search/physics?searchtype=author&query=Begalli%2C+M">M. Begalli</a>, <a href="/search/physics?searchtype=author&query=Han%2C+M">M. Han</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">C. H Kim</a>, <a href="/search/physics?searchtype=author&query=Seo%2C+H">H. Seo</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Quintieri%2C+L">L. Quintieri</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">G. Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">A. Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1111.2179v1-abstract-short" style="display: inline;"> The assessment of the reliability of Monte Carlo simulations is discussed, with emphasis on uncertainty quantification and the related impact on experimental results. Methods and techniques to account for epistemic uncertainties, i.e. for intrinsic knowledge gaps in physics modeling, are discussed with the support of applications to concrete experimental scenarios. Ongoing projects regarding the i… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.2179v1-abstract-full').style.display = 'inline'; document.getElementById('1111.2179v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1111.2179v1-abstract-full" style="display: none;"> The assessment of the reliability of Monte Carlo simulations is discussed, with emphasis on uncertainty quantification and the related impact on experimental results. Methods and techniques to account for epistemic uncertainties, i.e. for intrinsic knowledge gaps in physics modeling, are discussed with the support of applications to concrete experimental scenarios. Ongoing projects regarding the investigation of epistemic uncertainties in the Geant4 simulation toolkit are reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.2179v1-abstract-full').style.display = 'none'; document.getElementById('1111.2179v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 November, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To be published in the Proceedings of the 13th ICATPP Conference on Astroparticle, Particle, Space Physics and Detectors for Physics Applications, Villa Olmo, Como, 3-7 October 2011</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1012.0697">arXiv:1012.0697</a> <span> [<a href="https://arxiv.org/pdf/1012.0697">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Data libraries as a collaborative tool across Monte Carlo codes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Augelli%2C+M">Mauro Augelli</a>, <a href="/search/physics?searchtype=author&query=Begalli%2C+M">Marcia Begalli</a>, <a href="/search/physics?searchtype=author&query=Han%2C+M">Mincheol Han</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">Steffen Hauf</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chan-Hyeung Kim</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">Markus Kuster</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">Maria Grazia Pia</a>, <a href="/search/physics?searchtype=author&query=Quintieri%2C+L">Lina Quintieri</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">Paolo Saracco</a>, <a href="/search/physics?searchtype=author&query=Seo%2C+H">Hee Seo</a>, <a href="/search/physics?searchtype=author&query=Sudhakar%2C+M">Manju Sudhakar</a>, <a href="/search/physics?searchtype=author&query=Eidenspointner%2C+G">Georg Eidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">Andreas Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1012.0697v1-abstract-short" style="display: inline;"> The role of data libraries in Monte Carlo simulation is discussed. A number of data libraries currently in preparation are reviewed; their data are critically examined with respect to the state-of-the-art in the respective fields. Extensive tests with respect to experimental data have been performed for the validation of their content. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1012.0697v1-abstract-full" style="display: none;"> The role of data libraries in Monte Carlo simulation is discussed. A number of data libraries currently in preparation are reviewed; their data are critically examined with respect to the state-of-the-art in the respective fields. Extensive tests with respect to experimental data have been performed for the validation of their content. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.0697v1-abstract-full').style.display = 'none'; document.getElementById('1012.0697v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, to appear in proceedings of the Joint International Conference on Supercomputing in Nuclear Applications and Monte Carlo 2010</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1012.0139">arXiv:1012.0139</a> <span> [<a href="https://arxiv.org/pdf/1012.0139">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> </div> </div> <p class="title is-5 mathjax"> Radioactive decay simulation with Geant4: experimental benchmarks and developments for X-ray astronomy applications </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Hoffmann%2C+D+H+H">Dieter H. H. Hoffmann</a>, <a href="/search/physics?searchtype=author&query=Bell%2C+Z+W">Z. W. Bell</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">M. G. Pia</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">Georg Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">A. Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1012.0139v1-abstract-short" style="display: inline;"> We present 纬 spectroscopy validation measurements for the Geant4 radioactive decay simulation for a selected range of isotopes using a simple experimental setup. Using these results we point out problems in the decay simulation and where they may originate from. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1012.0139v1-abstract-full" style="display: none;"> We present 纬 spectroscopy validation measurements for the Geant4 radioactive decay simulation for a selected range of isotopes using a simple experimental setup. Using these results we point out problems in the decay simulation and where they may originate from. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.0139v1-abstract-full').style.display = 'none'; document.getElementById('1012.0139v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, to appear in proceedings of the Joint International Conference on Supercomputing in Nuclear Applications and Monte Carlo 2010</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1012.0134">arXiv:1012.0134</a> <span> [<a href="https://arxiv.org/pdf/1012.0134">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> New Physics Data Libraries for Monte Carlo Transport </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Augelli%2C+M">M. Augelli</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Han%2C+M">M. Han</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">C. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">M. G. Pia</a>, <a href="/search/physics?searchtype=author&query=Quintieri%2C+L">L. Quintieri</a>, <a href="/search/physics?searchtype=author&query=Seo%2C+H">H. Seo</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">P. Saracco</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">G. Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">A. Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1012.0134v1-abstract-short" style="display: inline;"> The role of data libraries as a collaborative tool across Monte Carlo codes is discussed. Some new contributions in this domain are presented; they concern a data library of proton and alpha ionization cross sections, the development in progress of a data library of electron ionization cross sections and proposed improvements to the EADL (Evaluated Atomic Data Library), the latter resulting from a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.0134v1-abstract-full').style.display = 'inline'; document.getElementById('1012.0134v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1012.0134v1-abstract-full" style="display: none;"> The role of data libraries as a collaborative tool across Monte Carlo codes is discussed. Some new contributions in this domain are presented; they concern a data library of proton and alpha ionization cross sections, the development in progress of a data library of electron ionization cross sections and proposed improvements to the EADL (Evaluated Atomic Data Library), the latter resulting from an extensive data validation process. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.0134v1-abstract-full').style.display = 'none'; document.getElementById('1012.0134v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, to appear in proceedings of the Nuclear Science Symposium and Medical Imaging Conference 2010, Knoxville</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1011.6601">arXiv:1011.6601</a> <span> [<a href="https://arxiv.org/pdf/1011.6601">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Environmental Adaptability and Mutants: Exploring New Concepts in Particle Transport for Multi-Scale Simulation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Augelli%2C+M">M. Augelli</a>, <a href="/search/physics?searchtype=author&query=Begalli%2C+M">M. Begalli</a>, <a href="/search/physics?searchtype=author&query=Han%2C+M">M. Han</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">C. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">M. G. Pia</a>, <a href="/search/physics?searchtype=author&query=Filho%2C+P+Q">P. Queiroz Filho</a>, <a href="/search/physics?searchtype=author&query=Quintieri%2C+L">L. Quintieri</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">P. Saracco</a>, <a href="/search/physics?searchtype=author&query=Seo%2C+H">H. Seo</a>, <a href="/search/physics?searchtype=author&query=Santos%2C+D+S">D. Souza Santos</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">G. Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">A. Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1011.6601v1-abstract-short" style="display: inline;"> Ongoing investigations to introduce software techniques suitable to support new experimental requirements for multi-scale simulation are discussed. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1011.6601v1-abstract-full" style="display: none;"> Ongoing investigations to introduce software techniques suitable to support new experimental requirements for multi-scale simulation are discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.6601v1-abstract-full').style.display = 'none'; document.getElementById('1011.6601v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 November, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">2 pages, to appear in proceedings of the Nuclear Science Symposium and Medical Imaging Conference 2010, Knoxville</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0912.1705">arXiv:0912.1705</a> <span> [<a href="https://arxiv.org/pdf/0912.1705">pdf</a>, <a href="https://arxiv.org/ps/0912.1705">ps</a>, <a href="https://arxiv.org/format/0912.1705">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Geant4-related R&D for new particle transport methods </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Augelli%2C+M">M. Augelli</a>, <a href="/search/physics?searchtype=author&query=Begalli%2C+M">M. Begalli</a>, <a href="/search/physics?searchtype=author&query=Evans%2C+T">T. Evans</a>, <a href="/search/physics?searchtype=author&query=Gargioni%2C+E">E. Gargioni</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">C. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">M. G. Pia</a>, <a href="/search/physics?searchtype=author&query=Filho%2C+P+Q">P. Queiroz Filho</a>, <a href="/search/physics?searchtype=author&query=Quintieri%2C+L">L. Quintieri</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">P. Saracco</a>, <a href="/search/physics?searchtype=author&query=Santos%2C+D+S">D. Souza Santos</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">G. Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">A. Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0912.1705v1-abstract-short" style="display: inline;"> A R&D project has been launched in 2009 to address fundamental methods in radiation transport simulation and revisit Geant4 kernel design to cope with new experimental requirements. The project focuses on simulation at different scales in the same experimental environment: this set of problems requires new methods across the current boundaries of condensed-random-walk and discrete transport sche… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0912.1705v1-abstract-full').style.display = 'inline'; document.getElementById('0912.1705v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0912.1705v1-abstract-full" style="display: none;"> A R&D project has been launched in 2009 to address fundamental methods in radiation transport simulation and revisit Geant4 kernel design to cope with new experimental requirements. The project focuses on simulation at different scales in the same experimental environment: this set of problems requires new methods across the current boundaries of condensed-random-walk and discrete transport schemes. An exploration is also foreseen about exploiting and extending already existing Geant4 features to apply Monte Carlo and deterministic transport methods in the same simulation environment. An overview of this new R&D associated with Geant4 is presented, together with the first developments in progress. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0912.1705v1-abstract-full').style.display = 'none'; document.getElementById('0912.1705v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 December, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, to appear in proceedings of the Nuclear Science Symposium and Medical Imaging Conference 2009, Orlando</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0912.1703">arXiv:0912.1703</a> <span> [<a href="https://arxiv.org/pdf/0912.1703">pdf</a>, <a href="https://arxiv.org/format/0912.1703">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Research in Geant4 electromagnetic physics design, and its effects on computational performance and quality assurance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Augelli%2C+M">M. Augelli</a>, <a href="/search/physics?searchtype=author&query=Begalli%2C+M">M. Begalli</a>, <a href="/search/physics?searchtype=author&query=Hauf%2C+S">S. Hauf</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">C. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Kuster%2C+M">M. Kuster</a>, <a href="/search/physics?searchtype=author&query=Pia%2C+M+G">M. G. Pia</a>, <a href="/search/physics?searchtype=author&query=Filho%2C+P+Q">P. Queiroz Filho</a>, <a href="/search/physics?searchtype=author&query=Quintieri%2C+L">L. Quintieri</a>, <a href="/search/physics?searchtype=author&query=Saracco%2C+P">P. Saracco</a>, <a href="/search/physics?searchtype=author&query=Santos%2C+D+S">D. Souza Santos</a>, <a href="/search/physics?searchtype=author&query=Weidenspointner%2C+G">G. Weidenspointner</a>, <a href="/search/physics?searchtype=author&query=Zoglauer%2C+A">A. Zoglauer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0912.1703v1-abstract-short" style="display: inline;"> The Geant4 toolkit offers a rich variety of electromagnetic physics models; so far the evaluation of this Geant4 domain has been mostly focused on its physics functionality, while the features of its design and their impact on simulation accuracy, computational performance and facilities for verification and validation have not been the object of comparable attention yet, despite the critical ro… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0912.1703v1-abstract-full').style.display = 'inline'; document.getElementById('0912.1703v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0912.1703v1-abstract-full" style="display: none;"> The Geant4 toolkit offers a rich variety of electromagnetic physics models; so far the evaluation of this Geant4 domain has been mostly focused on its physics functionality, while the features of its design and their impact on simulation accuracy, computational performance and facilities for verification and validation have not been the object of comparable attention yet, despite the critical role they play in many experimental applications. A new project is in progress to study the application of new design concepts and software techniques in Geant4 electromagnetic physics, and to evaluate how they can improve on the current simulation capabilities. The application of a policy-based class design is investigated as a means to achieve the objective of granular decomposition of processes; this design technique offers various advantages in terms of flexibility of configuration and computational performance. The current Geant4 physics models have been re-implemented according to the new design as a pilot project. The main features of the new design and first results of performance improvement and testing simplification are presented; they are relevant to many Geant4 applications, where computational speed and the containment of resources invested in simulation production and quality assurance play a critical role. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0912.1703v1-abstract-full').style.display = 'none'; document.getElementById('0912.1703v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 December, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, 4 figures and images, to appear in proceedings of the Nuclear Science Symposium and Medical Imaging Conference 2009, Orlando</span> </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 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