在 CROSS 地下设施中测试的 CUPID Li$_{2}$$^{100}$MoO$_4$ 闪烁量热器
仪器与探测器
2021-03-24 v1
摘要
一个基于大尺寸立方 LiMoO 晶体（边长 45 mm）和 Ge 晶圆（闪烁探测器）的闪烁量热器，已在西班牙 Canfranc 地下实验室的 CROSS 低温设施中运行。该双读出探测器是下一代 实验 CUPID 所将采用技术的一个原型。测量在脉冲管稀释制冷机中于 18 和 12 mK 温度下进行。该装置采用了与将承载 CUPID 的 CUORE 低温恒温器相同的技术，因而代表了对预期性能的准确估计。LiMoO 量热器在 2615 keV γ 线处展现出 6 keV FWHM 的高能量分辨率。对 LiMoO 量热器触发的每次事件所探测到的闪烁光，实现了高于 2 MeV 的 γ(β) 与 α 事件之间的完全分离（8）。LiMoO 晶体还展现出高内部放射性纯度，Th 与 Ra 活度分别小于 3 和 8 Bq/kg。同时考虑到更紧凑且质量更大的探测器阵列的优势——其可由立方形晶体（相较于圆柱形）制成，本测试证明了立方 LiMoO 闪烁量热器在 CROSS 与 CUPID 项目中用于高灵敏度搜寻 Mo 衰变的巨大潜力。
引用
@article{arxiv.2011.13806,
title = {A CUPID Li$_{2}$$^{100}$MoO$_4$ scintillating bolometer tested in the CROSS underground facility},
author = {The CUPID Interest Group and A. Armatol and E. Armengaud and W. Armstrong and C. Augier and F. T. Avignone and O. Azzolini and I. C. Bandac and A. S. Barabash and G. Bari and A. Barresi and D. Baudin and F. Bellini and G. Benato and M. Beretta and L. Bergé and Ch. Bourgeois and M. Biassoni and J. Billard and V. Boldrini and A. Branca and C. Brofferio and C. Bucci and J. M. Calvo-Mozota and J. Camilleri and A. Candela and S. Capelli and L. Cappelli and L. Cardani and P. Carniti and N. Casali and A. Cazes and E. Celi and C. Chang and M. Chapellier and A. Charrier and D. Chiesa and M. Clemenza and I. Colantoni and F. Collamati and S. Copello and F. Cova and O. Cremonesi and R. J. Creswick and A. Cruciani and A. D'Addabbo and G. D'Imperio and I. Dafinei and F. A. Danevich and M. de Combarieu and M. De Deo and M. De Jesus and P. de Marcillac and S. Dell'Oro and S. Di Domizio and V. Dompe and A. Drobizhev and L. Dumoulin and G. Fantini and M. Fasoli and M. Faverzani and E. Ferri and F. Ferri and F. Ferroni and E. Figueroa-Feliciano and J. Formaggio and A. Franceschi and C. Fu and S. Fu and B. K. Fujikawa and J. Gascon and A. Giachero and L. Gironi and A. Giuliani and P. Gorla and C. Gotti and P. Gras and M. Gros and E. Guerard 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 A. Ianni 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 Y. Liu and P. Loaiza and L. Ma and M. Madhukuttan and F. Mancarella and R. Mariam and L. Marini and S. Marnieros and M. Martinez and R. H. Maruyama and B. Mauri and D. Mayer and Y. Mei and S. Milana and D. Misiak and T. Napolitano and M. Nastasi and X. -F. Navick and J. Nikkel and R. Nipoti and S. Nisi and C. Nones and E. B. Norman and V. Novosad and I. Nutini and T. O'Donnell and G. Olivier and E. Olivieri and C. Oriol and J. L. Ouellet and S. Pagan and C. Pagliarone and L. Pagnanini and P. Pari and L. Pattavina and B. Paul and M. Pavan and H. Peng and G. Pessina and V. Pettinacci and C. Pira and S. Pirro and D. V. Poda and T. Polakovic and O. G. Polischuk and S. Pozzi and E. Previtali and A. Puiu and A. Ressa and D. Reynet and R. Rizzoli and C. Rosenfeld and V. Sanglard and J. A. Scarpaci and B. Schmidt and V. Sharma and V. N. Shlegel and V. Singh and M. Sisti and D. Speller and P. T. Surukuchi and L. Taffarello and O. Tellier and C. Tomei and V. I. Tretyak and A. Tsymbaliuk and A. Vedda and M. Velazquez and K. J. Vetter and S. L. Wagaarachchi and G. Wang and L. 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. Yumatov and M. M. Zarytskyy and J. Zhang and A. S. Zolotarova and S. Zucchelli},
journal= {arXiv preprint arXiv:2011.13806},
year = {2021}
}
备注
19 pages, 7 figures, 1 table