XENON1T实验的$^{222}$Rn析出测量
仪器与探测器
2022-02-04 v3 高能物理 - 实验
摘要
低放射性结构材料的选择对于低能稀有事件搜寻实验的成功至关重要。除块体中的放射性污染物外，材料表面放射性氡原子的析出在进一步降低此类实验本底的努力中日益重要。本工作中，我们展示了为XENON1T暗物质实验所进行的Rn析出测量。结合块体杂质筛查活动，其结果使我们能够挑选放射性最纯的结构材料，目标是在3.2 t氙中实现10 Bq/kg的Rn活度浓度。对Rn源分布的了解使我们能在实验过程中有选择地消除关键部件。析出测量的预测与XENON1T中Rn活度浓度的数据进行了比较。XENON1T靶体中最终的Rn活度浓度为(4.5 0.1) Bq/kg，是氙暗物质实验中有史以来达到的最低值。
引用
@article{arxiv.2009.13981,
title = {$^{222}$Rn emanation measurements for the XENON1T experiment},
author = {E. Aprile and J. Aalbers and F. Agostini and M. Alfonsi and L. Althueser and F. D. Amaro and V. C. Antochi and E. Angelino and J. R. Angevaare and F. Arneodo and D. Barge and L. Baudis and B. Bauermeister and L. Bellagamba and M. L. Benabderrahmane and T. Berger and P. A. Breur and A. Brown and E. Brown and S. Bruenner and G. Bruno and R. Budnik and C. Capelli and J. M. R. Cardoso and D. Cichon and B. Cimmino and M. Clark and D. Coderre and A. P. Colijn and J. Conrad and J. P. Cussonneau and M. P. Decowski and A. Depoian and P. Di Gangi and A. Di Giovanni and R. Di Stefano and S. Diglio and A. Elykov and G. Eurin and A. D. Ferella and W. Fulgione and P. Gaemers and R. Gaior and A. Gallo Rosso and M. Galloway and F. Gao and L. Grandi and M. Garbini and C. Hasterok and C. Hils and K. Hiraide and L. Hoetzsch and E. Hogenbirk and J. Howlett and M. Iacovacci and Y. Itow and F. Joerg and N. Kato and S. Kazama and M. Kobayashi and G. Koltman and A. Kopec and H. Landsman and R. F. Lang and L. Levinson and Q. Lin and S. Lindemann and M. Lindner and F. Lombardi and J. A. M. Lopes and E. López Fune and C. Macolino and J. Mahlstedt and L. Manenti and A. Manfredini and F. Marignetti and T. Marrodán Undagoitia and K. Martens and J. Masbou and D. Masson and S. Mastroianni and M. Messina and K. Miuchi and A. Molinario and K. Morå and S. Moriyama and Y. Mosbacher and M. Murra and J. Naganoma and K. Ni and U. Oberlack and K. Odgers and J. Palacio and B. Pelssers and R. Peres and J. Pienaar and V. Pizzella and G. Plante and J. Qin and H. Qiu and D. Ramírez García and S. Reichard and A. Rocchetti and N. Rupp and J. M. F. dos Santos and G. Sartorelli and N. Šarčević and M. Scheibelhut and S. Schindler and J. Schreiner and D. Schulte and M. Schumann and L. Scotto Lavina and M. Selvi and F. Semeria and P. Shagin and E. Shockley and M. Silva and H. Simgen and A. Takeda and C. Therreau and D. Thers and F. Toschi and G. Trinchero and C. Tunnell and M. Vargas and G. Volta and O. Wack and H. Wang and Y. Wei and C. Weinheimer and M. Weiss and D. Wenz and J. Westermann and C. Wittweg and J. Wulf and Z. Xu and M. Yamashita and J. Ye and G. Zavattini and Y. Zhang and T. Zhu and J. P. Zopounidis},
journal= {arXiv preprint arXiv:2009.13981},
year = {2022}
}
备注
14 pages, 3 figures