首个 CUPID 探测器模块的优化
仪器与探测器
2022-02-15 v1 核实验
摘要
CUPID 将是一个搜寻无中微子双 衰变的下一代实验，其发现将确立中微子的马约拉纳性质。基于目前正在 LNGS 取数的 CUORE 实验所取得的经验，CUPID 旨在通过闪烁 LiMoO 晶体与光探测器耦合来实现无本底环境。事实上，如 CUPID-0 和 CUPID-Mo 演示装置所证明的，同时探测热和光使我们能够排除占主导的 粒子本底。在这项工作中，我们展示了 CUPID 基线模块的首次测试结果。特别地，我们提出了一种新的优化探测器结构和光传感器设计，分别用于改进工程实现和光收集。我们对热探测器进行了表征，在 Mo 的 值（约 3034 keV）处获得了 (5.9 0.2) keV FWHM 的能量分辨率。我们研究了基线 CUPID 设计与一种采用重力辅助光探测器安装的替代配置的光收集情况。在这两种情况下，我们都相对于过去的测量获得了光收集的提升，并验证了探测器的粒子鉴别能力，其确保 粒子排除率高于 99.9%，完全满足 CUPID 的要求。
引用
@article{arxiv.2202.06279,
title = {Optimization of the first CUPID detector module},
author = {CUPID collaboration and A. Armatol and C. Augier and F. T. Avignone and O. Azzolini and M. Balata and K. Ballen and A. S. Barabash and G. Bari and A. Barresi and D. Baudin and F. Bellini and G. Benato and M. Beretta and M. Bettelli and M. Biassoni and J. Billard and V. Boldrini and A. Branca and C. Brofferio and C. Bucci and J. Camilleri and C. Capelli and S. Capelli and L. Cappelli and L. Cardani and P. Carniti and N. Casali and E. Celi and C. Chang and D. Chiesa and M. Clemenza and I. Colantoni and S. Copello and E. Craft and O. Cremonesi and R. J. Creswick and A. Cruciani and A. D'Addabbo and G. D'Imperio and S. Dabagov and I. Dafinei and F. A. Danevich and M. De Jesus and P. de Marcillac and S. Dell'Oro and S. Di Domizio and S. Di Lorenzo and T. Dixon and V. Dompè and A. Drobizhev and L. Dumoulin and G. Fantini and M. Faverzani and E. Ferri and F. Ferri and F. Ferroni and E. Figueroa-Feliciano and L. Foggetta and J. Formaggio and A. Franceschi and C. Fu and S. Fu and B. K. Fujikawa and A. Gallas and J. Gascon and S. Ghislandi and A. Giachero and A. Gianvecchio and L. Gironi and A. Giuliani and P. Gorla and C. Gotti and C. Grant and P. Gras and P. V. Guillaumon and T. D. Gutierrez and K. Han and E. V. Hansen and K. M. Heeger and D. L. Helis and H. Z. Huang and R. G. Huang and L. Imbert and J. Johnston and A. Juillard and G. Karapetrov and G. Keppel and H. Khalife and V. V. Kobychev and Yu. G. Kolomensky and S. I. Konovalov and R. Kowalski and T. Langford and M . Lefevre and R. Liu and Y. Liu and P. Loaiza and L. Ma and M. Madhukuttan and F. Mancarella and L. Marini and S. Marnieros and M. Martinez and R. H. Maruyama and Ph. Mas and B. Mauri and D. Mayer and G. Mazzitelli and Y. Mei and S. Milana and S. Morganti and T. Napolitano and M. Nastasi and J. Nikkel and S. Nisi and C. Nones and E. B. Norman and V. Novosad and I. Nutini and T. O'Donnell and E. Olivieri and M. Olmi and J. L. Ouellet and S. Pagan and C. Pagliarone and L. Pagnanini and L. Pattavina and M. Pavan and H. Peng and G. Pessina and V. Pettinacci and C. Pira and S. Pirro and D. V. Poda and O. G. Polischuk and I. Ponce and S. Pozzi and E. Previtali and A. Puiu and S. Quitadamo and A. Ressa and R. Rizzoli and C. Rosenfeld and P. Rosier and J. Scarpaci and B. Schmidt and V. Sharma and V. Shlegel and V. Singh and M. Sisti and P. Slocum and D. Speller and P. T. Surukuchi and L. Taffarello and C. Tomei and J. Torres and V. I. Tretyak and A. Tsymbaliuk and M. Velazquez and K. J. Vetter and S. L. Wagaarachchi and G. Wang and L. Wang and R. Wang and B. Welliver and J. Wilson and K. Wilson and L. A. Winslow and M. Xue and L. Yan and J. Yang and V. Yefremenko and V. I. Umatov and M. M. Zarytskyy and J. Zhang and A. Zolotarova and S. Zucchelli},
journal= {arXiv preprint arXiv:2202.06279},
year = {2022}
}
备注
10 pages, 5 figures