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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/2411.18969">arXiv:2411.18969</a> <span> [<a href="https://arxiv.org/pdf/2411.18969">pdf</a>, <a href="https://arxiv.org/format/2411.18969">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="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Towards a new generation of solid total-energy detectors for neutron-capture time-of-flight experiments with intense neutron beams </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/physics?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/physics?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/physics?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/physics?searchtype=author&query=Ladarescu%2C+I">I. Ladarescu</a>, <a href="/search/physics?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/physics?searchtype=author&query=de+la+Fuente-Rosales%2C+G">G. de la Fuente-Rosales</a>, <a href="/search/physics?searchtype=author&query=Gameiro%2C+B">B. Gameiro</a>, <a href="/search/physics?searchtype=author&query=Zaitseva%2C+N">N. Zaitseva</a>, <a href="/search/physics?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/physics?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/physics?searchtype=author&query=Gonz%C3%A1lez-Romero%2C+E">E. Gonz谩lez-Romero</a>, <a href="/search/physics?searchtype=author&query=Mart%C3%ADnez%2C+T">T. Mart铆nez</a>, <a href="/search/physics?searchtype=author&query=Mendoza%2C+E">E. Mendoza</a>, <a href="/search/physics?searchtype=author&query=de+Rada%2C+A+P">A. P茅rez de Rada</a>, <a href="/search/physics?searchtype=author&query=del+Olmo%2C+J+P">J. Plaza del Olmo</a>, <a href="/search/physics?searchtype=author&query=S%C3%A1nchez-Caballero%2C+A">A. S谩nchez-Caballero</a>, <a href="/search/physics?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/physics?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/physics?searchtype=author&query=Valenta%2C+S">S. Valenta</a>, <a href="/search/physics?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/physics?searchtype=author&query=Altieri%2C+S">S. Altieri</a>, <a href="/search/physics?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/physics?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/physics?searchtype=author&query=Bacak%2C+M">M. Bacak</a> , et al. (112 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="2411.18969v1-abstract-short" style="display: inline;"> Challenging neutron-capture cross-section measurements of small cross sections and samples with a very limited number of atoms require high-flux time-of-flight facilities. In turn, such facilities need innovative detection setups that are fast, have low sensitivity to neutrons, can quickly recover from the so-called $纬$-flash, and offer the highest possible detection sensitivity. In this paper, we… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.18969v1-abstract-full').style.display = 'inline'; document.getElementById('2411.18969v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.18969v1-abstract-full" style="display: none;"> Challenging neutron-capture cross-section measurements of small cross sections and samples with a very limited number of atoms require high-flux time-of-flight facilities. In turn, such facilities need innovative detection setups that are fast, have low sensitivity to neutrons, can quickly recover from the so-called $纬$-flash, and offer the highest possible detection sensitivity. In this paper, we present several steps toward such advanced systems. Specifically, we describe the performance of a high-sensitivity experimental setup at CERN n\_TOF EAR2. It consists of nine sTED detector modules in a compact cylindrical configuration, two conventional used large-volume C$_{6}$D$_{6}$ detectors, and one LaCl$_{3}$(Ce) detector. The performance of these detection systems is compared using $^{93}$Nb($n$,$纬$) data. We also developed a detailed \textsc{Geant4} Monte Carlo model of the experimental EAR2 setup, which allows for a better understanding of the detector features, including their efficiency determination. This Monte Carlo model has been used for further optimization, thus leading to a new conceptual design of a $纬$ detector array, STAR, based on a deuterated-stilbene crystal array. Finally, the suitability of deuterated-stilbene crystals for the future STAR array is investigaged experimentally utilizing a small stilbene-d12 prototype. The results suggest a similar or superior performance of STAR with respect to other setups based on liquid-scintillators, and allow for additional features such as neutron-gamma discrimination and a higher level of customization capability. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.18969v1-abstract-full').style.display = 'none'; document.getElementById('2411.18969v1-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> 28 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.09759">arXiv:2403.09759</a> <span> [<a href="https://arxiv.org/pdf/2403.09759">pdf</a>, <a href="https://arxiv.org/format/2403.09759">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="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> A Segmented Total Energy Detector (sTED) optimized for $(n,纬)$ cross-section measurements at n_TOF EAR2 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/physics?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/physics?searchtype=author&query=Garcia%2C+J">J. Garcia</a>, <a href="/search/physics?searchtype=author&query=Gonzalez-Romero%2C+E">E. Gonzalez-Romero</a>, <a href="/search/physics?searchtype=author&query=Martinez%2C+T">T. Martinez</a>, <a href="/search/physics?searchtype=author&query=de+Rada%2C+A+P">A. Perez de Rada</a>, <a href="/search/physics?searchtype=author&query=Plaza%2C+J">J. Plaza</a>, <a href="/search/physics?searchtype=author&query=Sanchez-Caballero%2C+A">A. Sanchez-Caballero</a>, <a href="/search/physics?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/physics?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/physics?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/physics?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/physics?searchtype=author&query=Calvino%2C+F">F. Calvino</a>, <a href="/search/physics?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/physics?searchtype=author&query=collaboration%2C+t+n">the n_TOF collaboration</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="2403.09759v1-abstract-short" style="display: inline;"> The neutron time-of-flight facility n_TOF at CERN is a spallation source dedicated to measurements of neutron-induced reaction cross-sections of interest in nuclear technologies, astrophysics, and other applications. Since 2014, Experimental ARea 2 (EAR2) is operational and delivers a neutron fluence of $4\times 10^7$ neutrons per nominal proton pulse, which is 50 times higher than the one of Expe… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.09759v1-abstract-full').style.display = 'inline'; document.getElementById('2403.09759v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.09759v1-abstract-full" style="display: none;"> The neutron time-of-flight facility n_TOF at CERN is a spallation source dedicated to measurements of neutron-induced reaction cross-sections of interest in nuclear technologies, astrophysics, and other applications. Since 2014, Experimental ARea 2 (EAR2) is operational and delivers a neutron fluence of $4\times 10^7$ neutrons per nominal proton pulse, which is 50 times higher than the one of Experimental ARea 1 (EAR1) of $8\times10^5$ neutrons per pulse. The high neutron flux at EAR2 results in high counting rates in the detectors that challenged the previously existing capture detection systems. For this reason, a Segmented Total Energy Detector (sTED) has been developed to overcome the limitations in the detectors response, by reducing the active volume per module and by using a photomultiplier (PMT) optimized for high counting rates. This paper presents the main characteristics of the sTED, including energy and time resolution, response to $纬$-rays, and provides as well details of the use of the Pulse Height Weighting Technique (PHWT) with this detector. The sTED has been validated to perform neutron-capture cross-section measurements in EAR2 in the neutron energy range from thermal up to at least 400 keV. The detector has already been successfully used in several measurements at n_TOF EAR2. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.09759v1-abstract-full').style.display = 'none'; document.getElementById('2403.09759v1-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 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.17348">arXiv:2401.17348</a> <span> [<a href="https://arxiv.org/pdf/2401.17348">pdf</a>, <a href="https://arxiv.org/format/2401.17348">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</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/10.1016/j.radphyschem.2024.112243">10.1016/j.radphyschem.2024.112243 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of neutron time-of-flight spectra with a Bayesian unfolding methodology </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Fiol%2C+A+P+d+R">A. P茅rez de Rada Fiol</a>, <a href="/search/physics?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/physics?searchtype=author&query=Mart%C3%ADnez%2C+T">T. Mart铆nez</a>, <a href="/search/physics?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/physics?searchtype=author&query=Mendoza%2C+E">E. Mendoza</a>, <a href="/search/physics?searchtype=author&query=Plaza%2C+J">J. Plaza</a>, <a href="/search/physics?searchtype=author&query=Sanchez-Caballero%2C+A">A. Sanchez-Caballero</a>, <a href="/search/physics?searchtype=author&query=Villamar%C3%ADn%2C+D">D. Villamar铆n</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="2401.17348v3-abstract-short" style="display: inline;"> We have developed an innovative methodology for obtaining the neutron energy distribution from a time-of-flight (TOF) measurement based on the iterative Bayesian unfolding method and accurate Monte Carlo simulations. This methodology has been validated through the analysis of a realistic virtual $尾$-decay experiment, including the most relevant systematic effects in a real experiment. The proposed… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.17348v3-abstract-full').style.display = 'inline'; document.getElementById('2401.17348v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.17348v3-abstract-full" style="display: none;"> We have developed an innovative methodology for obtaining the neutron energy distribution from a time-of-flight (TOF) measurement based on the iterative Bayesian unfolding method and accurate Monte Carlo simulations. This methodology has been validated through the analysis of a realistic virtual $尾$-decay experiment, including the most relevant systematic effects in a real experiment. The proposed methodology allowed for obtaining accurate results over the energy range above the neutron detection threshold. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.17348v3-abstract-full').style.display = 'none'; document.getElementById('2401.17348v3-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 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">11 pages, 10 figures, revised version submitted to Radiation Physics and Chemistry</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Rad. Phys. Chem. 226 (2025) 112243 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.01365">arXiv:2311.01365</a> <span> [<a href="https://arxiv.org/pdf/2311.01365">pdf</a>, <a href="https://arxiv.org/format/2311.01365">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="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Pushing the high count rate limits of scintillation detectors for challenging neutron-capture experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Correa%2C+J+B">J. Balibrea Correa</a>, <a href="/search/physics?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/physics?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/physics?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/physics?searchtype=author&query=Ladarescu%2C+I">I. Ladarescu</a>, <a href="/search/physics?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/physics?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/physics?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/physics?searchtype=author&query=Gonz%C3%A1lez-Romero%2C+E">E. Gonz谩lez-Romero</a>, <a href="/search/physics?searchtype=author&query=Mart%C3%ADnez%2C+T">T. Mart铆nez</a>, <a href="/search/physics?searchtype=author&query=Mendoza%2C+E">E. Mendoza</a>, <a href="/search/physics?searchtype=author&query=de+Rada%2C+A+P">A. P茅rez de Rada</a>, <a href="/search/physics?searchtype=author&query=del+Olmo%2C+J+P">J. Plaza del Olmo</a>, <a href="/search/physics?searchtype=author&query=S%C3%A1nchez-Caballero%2C+A">A. S谩nchez-Caballero</a>, <a href="/search/physics?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/physics?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/physics?searchtype=author&query=Valenta%2C+S">S. Valenta</a>, <a href="/search/physics?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/physics?searchtype=author&query=Altieri%2C+S">S. Altieri</a>, <a href="/search/physics?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/physics?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/physics?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/physics?searchtype=author&query=Beltrami%2C+C">C. Beltrami</a>, <a href="/search/physics?searchtype=author&query=Bennett%2C+S">S. Bennett</a>, <a href="/search/physics?searchtype=author&query=Bernardes%2C+A+P">A. P. Bernardes</a> , et al. (109 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="2311.01365v1-abstract-short" style="display: inline;"> One of the critical aspects for the accurate determination of neutron capture cross sections when combining time-of-flight and total energy detector techniques is the characterization and control of systematic uncertainties associated to the measuring devices. In this work we explore the most conspicuous effects associated to harsh count rate conditions: dead-time and pile-up effects. Both effects… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01365v1-abstract-full').style.display = 'inline'; document.getElementById('2311.01365v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.01365v1-abstract-full" style="display: none;"> One of the critical aspects for the accurate determination of neutron capture cross sections when combining time-of-flight and total energy detector techniques is the characterization and control of systematic uncertainties associated to the measuring devices. In this work we explore the most conspicuous effects associated to harsh count rate conditions: dead-time and pile-up effects. Both effects, when not properly treated, can lead to large systematic uncertainties and bias in the determination of neutron cross sections. In the majority of neutron capture measurements carried out at the CERN n\_TOF facility, the detectors of choice are the C$_{6}$D$_{6}$ liquid-based either in form of large-volume cells or recently commissioned sTED detector array, consisting of much smaller-volume modules. To account for the aforementioned effects, we introduce a Monte Carlo model for these detectors mimicking harsh count rate conditions similar to those happening at the CERN n\_TOF 20~m fligth path vertical measuring station. The model parameters are extracted by comparison with the experimental data taken at the same facility during 2022 experimental campaign. We propose a novel methodology to consider both, dead-time and pile-up effects simultaneously for these fast detectors and check the applicability to experimental data from $^{197}$Au($n$,$纬$), including the saturated 4.9~eV resonance which is an important component of normalization for neutron cross section measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01365v1-abstract-full').style.display = 'none'; document.getElementById('2311.01365v1-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> 2 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </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> 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