High-Density Ultracold Neutron Source for Low-Energy Particle Physics Experiments
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915248731062272 |
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| author | Degenkolb, Skyler Chanel, Estelle Baudoin, Simon Baurand, Marie-Hélène Beck, Douglas H. Blé, Juliette Bourgeat-Lami, Eric Castillo, Zeus Filter, Hanno van der Grinten, Maurits Jenke, Tobias Jentschel, Michael Joyet, Victorien Lelièvre-Berna, Eddy Manasawala, Husain Neulinger, Thomas Fierlinger, Peter Svirina, Kseniia Tonon, Xavier Zimmer, Oliver |
| author_facet | Degenkolb, Skyler Chanel, Estelle Baudoin, Simon Baurand, Marie-Hélène Beck, Douglas H. Blé, Juliette Bourgeat-Lami, Eric Castillo, Zeus Filter, Hanno van der Grinten, Maurits Jenke, Tobias Jentschel, Michael Joyet, Victorien Lelièvre-Berna, Eddy Manasawala, Husain Neulinger, Thomas Fierlinger, Peter Svirina, Kseniia Tonon, Xavier Zimmer, Oliver |
| contents | SuperSUN, a new superthermal source of ultracold neutrons (UCN) at the Institut Laue-Langevin, exploits inelastic scattering of neutrons in isotopically pure superfluid $^4$He at temperatures below $0.6\,$K. For the first time, continuous operation with an intense broad-spectrum cold neutron beam is demonstrated over 60 days. We observe continuous UCN extraction rates of $21000\,$s$^{-1}$, and storage in the source with saturated $\textit{in-situ}$ density $273\,$cm$^{-3}$. The high stored density, low-energy UCN spectrum, and long storage times open new possibilities in fundamental and applied physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_13030 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-Density Ultracold Neutron Source for Low-Energy Particle Physics Experiments Degenkolb, Skyler Chanel, Estelle Baudoin, Simon Baurand, Marie-Hélène Beck, Douglas H. Blé, Juliette Bourgeat-Lami, Eric Castillo, Zeus Filter, Hanno van der Grinten, Maurits Jenke, Tobias Jentschel, Michael Joyet, Victorien Lelièvre-Berna, Eddy Manasawala, Husain Neulinger, Thomas Fierlinger, Peter Svirina, Kseniia Tonon, Xavier Zimmer, Oliver Instrumentation and Detectors High Energy Physics - Experiment Nuclear Experiment SuperSUN, a new superthermal source of ultracold neutrons (UCN) at the Institut Laue-Langevin, exploits inelastic scattering of neutrons in isotopically pure superfluid $^4$He at temperatures below $0.6\,$K. For the first time, continuous operation with an intense broad-spectrum cold neutron beam is demonstrated over 60 days. We observe continuous UCN extraction rates of $21000\,$s$^{-1}$, and storage in the source with saturated $\textit{in-situ}$ density $273\,$cm$^{-3}$. The high stored density, low-energy UCN spectrum, and long storage times open new possibilities in fundamental and applied physics. |
| title | High-Density Ultracold Neutron Source for Low-Energy Particle Physics Experiments |
| topic | Instrumentation and Detectors High Energy Physics - Experiment Nuclear Experiment |
| url | https://arxiv.org/abs/2504.13030 |