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</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/2502.13215">arXiv:2502.13215</a> <span> [<a href="https://arxiv.org/pdf/2502.13215">pdf</a>, <a href="https://arxiv.org/format/2502.13215">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 Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Performance of an Optical TPC Geant4 Simulation with Opticks GPU-Accelerated Photon Propagation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=NEXT+Collaboration"> NEXT Collaboration</a>, <a href="/search/physics?searchtype=author&query=Parmaksiz%2C+I">I. Parmaksiz</a>, <a href="/search/physics?searchtype=author&query=Mistry%2C+K">K. Mistry</a>, <a href="/search/physics?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Baeza-Rubio%2C+J">J. Baeza-Rubio</a>, <a href="/search/physics?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/physics?searchtype=author&query=Byrnes%2C+N">N. Byrnes</a>, <a href="/search/physics?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/physics?searchtype=author&query=Moya%2C+I+A">I. A. Moya</a>, <a href="/search/physics?searchtype=author&query=Navarro%2C+K+E">K. E. Navarro</a>, <a href="/search/physics?searchtype=author&query=Nygren%2C+D+R">D. R. Nygren</a>, <a href="/search/physics?searchtype=author&query=Oyedele%2C+P">P. Oyedele</a>, <a href="/search/physics?searchtype=author&query=Rogers%2C+L">L. Rogers</a>, <a href="/search/physics?searchtype=author&query=Samaniego%2C+F">F. Samaniego</a>, <a href="/search/physics?searchtype=author&query=Stogsdill%2C+K">K. Stogsdill</a>, <a href="/search/physics?searchtype=author&query=Almaz%C3%A1n%2C+H">H. Almaz谩n</a>, <a href="/search/physics?searchtype=author&query=%C3%81lvarez%2C+V">V. 脕lvarez</a>, <a href="/search/physics?searchtype=author&query=Aparicio%2C+B">B. Aparicio</a>, <a href="/search/physics?searchtype=author&query=Aranburu%2C+A+I">A. I. Aranburu</a>, <a href="/search/physics?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/physics?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/physics?searchtype=author&query=Auria-Luna%2C+F">F. Auria-Luna</a>, <a href="/search/physics?searchtype=author&query=Ayet%2C+S">S. Ayet</a> , et al. (91 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="2502.13215v1-abstract-short" style="display: inline;"> We investigate the performance of Opticks, an NVIDIA OptiX API 7.5 GPU-accelerated photon propagation compared with a single-threaded Geant4 simulation. We compare the simulations using an improved model of the NEXT-CRAB-0 gaseous time projection chamber. Performance results suggest that Opticks improves simulation speeds by between $58.47\pm{0.02}$ and $181.39\pm{0.28}$ times relative to a CPU-on… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.13215v1-abstract-full').style.display = 'inline'; document.getElementById('2502.13215v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.13215v1-abstract-full" style="display: none;"> We investigate the performance of Opticks, an NVIDIA OptiX API 7.5 GPU-accelerated photon propagation compared with a single-threaded Geant4 simulation. We compare the simulations using an improved model of the NEXT-CRAB-0 gaseous time projection chamber. Performance results suggest that Opticks improves simulation speeds by between $58.47\pm{0.02}$ and $181.39\pm{0.28}$ times relative to a CPU-only Geant4 simulation and these results vary between different types of GPU and CPU. A detailed comparison shows that the number of detected photons, along with their times and wavelengths, are in good agreement between Opticks and Geant4. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.13215v1-abstract-full').style.display = 'none'; document.getElementById('2502.13215v1-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 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </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">12 pages, 8 Figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2502.00188">arXiv:2502.00188</a> <span> [<a href="https://arxiv.org/pdf/2502.00188">pdf</a>, <a href="https://arxiv.org/format/2502.00188">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="High Energy Physics - Experiment">hep-ex</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="Atomic Physics">physics.atom-ph</span> </div> </div> <p class="title is-5 mathjax"> Dynamics of Magnetic Evaporative Beamline Cooling for Preparation of Cold Atomic Beams </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Esfahani%2C+A+A">A. Ashtari Esfahani</a>, <a href="/search/physics?searchtype=author&query=Bhagvati%2C+S">S. Bhagvati</a>, <a href="/search/physics?searchtype=author&query=B%C3%B6ser%2C+S">S. B枚ser</a>, <a href="/search/physics?searchtype=author&query=Brandsema%2C+M+J">M. J. Brandsema</a>, <a href="/search/physics?searchtype=author&query=Cabral%2C+R">R. Cabral</a>, <a href="/search/physics?searchtype=author&query=Chirayath%2C+V+A">V. A. Chirayath</a>, <a href="/search/physics?searchtype=author&query=Claessens%2C+C">C. Claessens</a>, <a href="/search/physics?searchtype=author&query=Coward%2C+N">N. Coward</a>, <a href="/search/physics?searchtype=author&query=de+Viveiros%2C+L">L. de Viveiros</a>, <a href="/search/physics?searchtype=author&query=Doe%2C+P+J">P. J. Doe</a>, <a href="/search/physics?searchtype=author&query=Elliott%2C+M+G">M. G. Elliott</a>, <a href="/search/physics?searchtype=author&query=Enomoto%2C+S">S. Enomoto</a>, <a href="/search/physics?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/physics?searchtype=author&query=Formaggio%2C+J+A">J. A. Formaggio</a>, <a href="/search/physics?searchtype=author&query=Foust%2C+B+T">B. T. Foust</a>, <a href="/search/physics?searchtype=author&query=Gaison%2C+J+K">J. K. Gaison</a>, <a href="/search/physics?searchtype=author&query=Harmston%2C+P">P. Harmston</a>, <a href="/search/physics?searchtype=author&query=Heeger%2C+K+M">K. M. Heeger</a>, <a href="/search/physics?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/physics?searchtype=author&query=Karim%2C+E">E. Karim</a>, <a href="/search/physics?searchtype=author&query=Kazkaz%2C+K">K. Kazkaz</a>, <a href="/search/physics?searchtype=author&query=Kolbeck%2C+P+T">P. T. Kolbeck</a>, <a href="/search/physics?searchtype=author&query=Li%2C+M">M. Li</a>, <a href="/search/physics?searchtype=author&query=Lindman%2C+A">A. Lindman</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C+Y">C. Y. Liu</a> , et al. (33 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="2502.00188v1-abstract-short" style="display: inline;"> The most sensitive direct neutrino mass searches today are based on measurement of the endpoint of the beta spectrum of tritium to infer limits on the mass of the unobserved recoiling neutrino. To avoid the smearing associated with the distribution of molecular final states in the T-He molecule, the next generation of these experiments will need to employ atomic (T) rather than molecular (T$_{2}$)… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.00188v1-abstract-full').style.display = 'inline'; document.getElementById('2502.00188v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.00188v1-abstract-full" style="display: none;"> The most sensitive direct neutrino mass searches today are based on measurement of the endpoint of the beta spectrum of tritium to infer limits on the mass of the unobserved recoiling neutrino. To avoid the smearing associated with the distribution of molecular final states in the T-He molecule, the next generation of these experiments will need to employ atomic (T) rather than molecular (T$_{2}$) tritium sources. Following production, atomic T can be trapped in gravitational and / or magnetic bottles for beta spectrum experiments, if and only if it can first be cooled to millikelvin temperatures. Accomplishing this cooling presents substantial technological challenges. The Project 8 collaboration is developing a technique based on magnetic evaporative cooling along a beamline (MECB) for the purpose of cooling T to feed a magneto-gravitational trap that also serves as a cyclotron radiation emission spectroscope. Initial tests of the approach are planned in a pathfinder apparatus using atomic Li. This paper presents a method for analyzing the dynamics of the MECB technique, and applies these calculations to the design of systems for cooling and slowing of atomic Li and T. A scheme is outlined that could provide a current of T at the millikelvin temperatures required for the Project 8 neutrino mass search. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.00188v1-abstract-full').style.display = 'none'; document.getElementById('2502.00188v1-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> 31 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.06091">arXiv:2304.06091</a> <span> [<a href="https://arxiv.org/pdf/2304.06091">pdf</a>, <a href="https://arxiv.org/format/2304.06091">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"> NEXT-CRAB-0: A High Pressure Gaseous Xenon Time Projection Chamber with a Direct VUV Camera Based Readout </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=NEXT+Collaboration"> NEXT Collaboration</a>, <a href="/search/physics?searchtype=author&query=Byrnes%2C+N+K">N. K. Byrnes</a>, <a href="/search/physics?searchtype=author&query=Parmaksiz%2C+I">I. Parmaksiz</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/physics?searchtype=author&query=Baeza-Rubio%2C+J">J Baeza-Rubio</a>, <a href="/search/physics?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/physics?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/physics?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a>, <a href="/search/physics?searchtype=author&query=Higley%2C+A">A. Higley</a>, <a href="/search/physics?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/physics?searchtype=author&query=Mistry%2C+K">K. Mistry</a>, <a href="/search/physics?searchtype=author&query=Moya%2C+I+A">I. A. Moya</a>, <a href="/search/physics?searchtype=author&query=Nygren%2C+D+R">D. R. Nygren</a>, <a href="/search/physics?searchtype=author&query=Oyedele%2C+P">P. Oyedele</a>, <a href="/search/physics?searchtype=author&query=Rogers%2C+L">L. Rogers</a>, <a href="/search/physics?searchtype=author&query=Stogsdill%2C+K">K. Stogsdill</a>, <a href="/search/physics?searchtype=author&query=Almaz%C3%A1n%2C+H">H. Almaz谩n</a>, <a href="/search/physics?searchtype=author&query=%C3%81lvarez%2C+V">V. 脕lvarez</a>, <a href="/search/physics?searchtype=author&query=Aparicio%2C+B">B. Aparicio</a>, <a href="/search/physics?searchtype=author&query=Aranburu%2C+A+I">A. I. Aranburu</a>, <a href="/search/physics?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/physics?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/physics?searchtype=author&query=Ayet%2C+S">S. Ayet</a>, <a href="/search/physics?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a> , et al. (94 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="2304.06091v2-abstract-short" style="display: inline;"> The search for neutrinoless double beta decay ($0谓尾尾$) remains one of the most compelling experimental avenues for the discovery in the neutrino sector. Electroluminescent gas-phase time projection chambers are well suited to $0谓尾尾$ searches due to their intrinsically precise energy resolution and topological event identification capabilities. Scalability to ton- and multi-ton masses requires read… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.06091v2-abstract-full').style.display = 'inline'; document.getElementById('2304.06091v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.06091v2-abstract-full" style="display: none;"> The search for neutrinoless double beta decay ($0谓尾尾$) remains one of the most compelling experimental avenues for the discovery in the neutrino sector. Electroluminescent gas-phase time projection chambers are well suited to $0谓尾尾$ searches due to their intrinsically precise energy resolution and topological event identification capabilities. Scalability to ton- and multi-ton masses requires readout of large-area electroluminescent regions with fine spatial resolution, low radiogenic backgrounds, and a scalable data acquisition system. This paper presents a detector prototype that records event topology in an electroluminescent xenon gas TPC via VUV image-intensified cameras. This enables an extendable readout of large tracking planes with commercial devices that reside almost entirely outside of the active medium.Following further development in intermediate scale demonstrators, this technique may represent a novel and enlargeable method for topological event imaging in $0谓尾尾$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.06091v2-abstract-full').style.display = 'none'; document.getElementById('2304.06091v2-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 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </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">30 Pages, 22 figures, Updated to match current JINST submission</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.01522">arXiv:2303.01522</a> <span> [<a href="https://arxiv.org/pdf/2303.01522">pdf</a>, <a href="https://arxiv.org/format/2303.01522">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="High Energy Physics - Experiment">hep-ex</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/10.1088/1748-0221/18/07/P07044">10.1088/1748-0221/18/07/P07044 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A Compact Dication Source for Ba$^{2+}$ Tagging and Heavy Metal Ion Sensor Development </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Navarro%2C+K+E">K. E. Navarro</a>, <a href="/search/physics?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/physics?searchtype=author&query=Baeza-Rubio%2C+J">J. Baeza-Rubio</a>, <a href="/search/physics?searchtype=author&query=Boyd%2C+M">M. Boyd</a>, <a href="/search/physics?searchtype=author&query=Denisenko%2C+A+A">A. A. Denisenko</a>, <a href="/search/physics?searchtype=author&query=Foss%2C+F+W">F. W. Foss</a>, <a href="/search/physics?searchtype=author&query=Giri%2C+S">S. Giri</a>, <a href="/search/physics?searchtype=author&query=Miller%2C+R">R. Miller</a>, <a href="/search/physics?searchtype=author&query=Nygren%2C+D+R">D. R. Nygren</a>, <a href="/search/physics?searchtype=author&query=Tiscareno%2C+M+R">M. R. Tiscareno</a>, <a href="/search/physics?searchtype=author&query=Samaniego%2C+F+J">F. J. Samaniego</a>, <a href="/search/physics?searchtype=author&query=Stogsdill%2C+K">K. Stogsdill</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Almaz%C3%A1n%2C+H">H. Almaz谩n</a>, <a href="/search/physics?searchtype=author&query=%C3%81lvarez%2C+V">V. 脕lvarez</a>, <a href="/search/physics?searchtype=author&query=Aparicio%2C+B">B. Aparicio</a>, <a href="/search/physics?searchtype=author&query=Aranburu%2C+A+I">A. I. Aranburu</a>, <a href="/search/physics?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/physics?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/physics?searchtype=author&query=Ayet%2C+S">S. Ayet</a>, <a href="/search/physics?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/physics?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/physics?searchtype=author&query=Ballester%2C+F">F. Ballester</a>, <a href="/search/physics?searchtype=author&query=Benlloch-Rodr%C3%ADguez%2C+J+M">J. M. Benlloch-Rodr铆guez</a>, <a href="/search/physics?searchtype=author&query=Borges%2C+F+I+G+M">F. I. G. M. Borges</a> , et al. (85 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="2303.01522v1-abstract-short" style="display: inline;"> We present a tunable metal ion beam that delivers controllable ion currents in the picoamp range for testing of dry-phase ion sensors. Ion beams are formed by sequential atomic evaporation and single or multiple electron impact ionization, followed by acceleration into a sensing region. Controllability of the ionic charge state is achieved through tuning of electrode potentials that influence the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.01522v1-abstract-full').style.display = 'inline'; document.getElementById('2303.01522v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.01522v1-abstract-full" style="display: none;"> We present a tunable metal ion beam that delivers controllable ion currents in the picoamp range for testing of dry-phase ion sensors. Ion beams are formed by sequential atomic evaporation and single or multiple electron impact ionization, followed by acceleration into a sensing region. Controllability of the ionic charge state is achieved through tuning of electrode potentials that influence the retention time in the ionization region. Barium, lead, and cobalt samples have been used to test the system, with ion currents identified and quantified using a quadrupole mass analyzer. Realization of a clean $\mathrm{Ba^{2+}}$ ion beam within a bench-top system represents an important technical advance toward the development and characterization of barium tagging systems for neutrinoless double beta decay searches in xenon gas. This system also provides a testbed for investigation of novel ion sensing methodologies for environmental assay applications, with dication beams of Pb$^{2+}$ and Cd$^{2+}$ also demonstrated for this purpose. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.01522v1-abstract-full').style.display = 'none'; document.getElementById('2303.01522v1-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 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div 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