基于MMC的锂钼钒低温热力学计量器用于AMoRE-II
仪器与探测器
2025-03-05 v2 天体物理仪器与方法
高能物理 - 实验
核实验
摘要
AMoRE合作组织通过低温热力学计量检测方式，利用钼酸盐闪烁晶体搜索Mo的 neutrinoless double beta衰变。AMoRE初期实验（AMoRE-pilot和AMoRE-I）已证明具备竞争性的发现潜力。目前，AMoRE-II实验将部署约90 kg Mo同位素的大型探测器阵列，正在施工中。本文讨论了用于AMoRE-II探测器模块的锂钼钒低温热力学计量器的基线设计与表征。原型装置包含新的 housing 结构和两种不同质量的晶体（316 g和517-521 g），在10 mK温度下工作，能量分辨率（FWHM）为7.55-8.82 keV，位于2.615 MeV Tl 线处；有效光检测为0.79-0.96 keV/MeV。同时热和光检测使α粒子在能量区间约为Li(n, )H Q值=4.785 MeV时具有12.37-19.50的明显α粒子分离能力。 promising的探测器性能在最高可达30 mK的温度下实现，放宽了运行大型AMoRE-II阵列的温度约束。
引用
@article{arxiv.2407.12227,
title = {Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II},
author = {A. Agrawal and V. V. Alenkov and P. Aryal and H. Bae and J. Beyer and B. Bhandari and R. S. Boiko and K. Boonin and O. Buzanov and C. R. Byeon and N. Chanthima and M. K. Cheoun and J. S. Choe and S. Choi and S. Choudhury and J. S. Chung and F. A. Danevich and M. Djamal and D. Drung and C. Enss and A. Fleischmann and A. M. Gangapshev and L. Gastaldo and Y. M. Gavrilyuk and A. M. Gezhaev and O. Gileva and V. D. Grigorieva and V. I. Gurentsov and C. Ha and D. H. Ha and E. J. Ha and D. H. Hwang and E. J. Jeon and J. A. Jeon and H. S. Jo and J. Kaewkhao and C. S. Kang and W. G. Kang and V. V. Kazalov and S. Kempf and A. Khan and S. Khan and D. Y. Kim and G. W. Kim and H. B. Kim and H. J. Kim and H. J. Kim and H. L. Kim and H. S. Kim and M. B. Kim and S. C. Kim and S. K. Kim and S. R. Kim and W. T. Kim and Y. D. Kim and Y. H. Kim and K. Kirdsiri and Y. J. Ko and V. V. Kobychev and V. Kornoukhov and V. V. Kuzminov and D. H. Kwon and C. H. Lee and D. Y. Lee and E. K. Lee and H. J. Lee and H. S. Lee and J. Lee and J. Y. Lee and K. B. Lee and M. H. Lee and M. K. Lee and S. W. Lee and Y. C. Lee and D. S. Leonard and H. S. Lim and B. Mailyan and E. P. Makarov and P. Nyanda and Y. Oh and S. L. Olsen and S. I. Panasenko and H. K. Park and H. S. Park and K. S. Park and S. Y. Park and O. G. Polischuk and H. Prihtiadi and S. Ra and S. S. Ratkevich and G. Rooh and M. B. Sari and J. Seo and K. M. Seo and B. Sharma and K. A. Shin and V. N. Shlegel and K. Siyeon and J. So and N. V. Sokur and J. K. Son and J. W. Song and N. Srisittipokakun and V. I. Tretyak and R. Wirawan and K. R. Woo and H. J. Yeon and Y. S. Yoon and Q. Yue},
journal= {arXiv preprint arXiv:2407.12227},
year = {2025}
}