论文标题
ACME III电子EDM搜索的SIPM模块
SiPM module for the ACME III electron EDM search
论文作者
论文摘要
该报告显示了大面积硅光电层流（SIPM）模块的设计和性能开发了从10 cm尺度发射的荧光检测。该模块已针对计划的ACME III电子偶极矩（EEDM）搜索进行了优化，这将是对粒子物理标准模型以外的物理存在的强大探针。 ACME实验搜索了EEDM，它使用冷的Tho Tho Polar分子（ACME II）搜索了世界上最高灵敏度。在ACME III中，SIPM将用于检测荧光光子（实验的基本信号）而不是PMT，该光子用于先前的测量中。我们基于16通道SIPM阵列开发了优化的SIPM模块。键操作参数的表征，包括增益和噪声。发现ACME III应用的SIPM深度计数速率，背景光灵敏度和光学串扰均已得到很好的抑制作用。
This report shows the design and the performance of a large area Silicon Photomultiplier (SiPM) module developed detection of fluorescent light emitted from a 10 cm scale volume. The module was optimized for the planned ACME III electron electric dipole moment (eEDM) search, which will be a powerful probe for the existence of physics beyond the Standard Model of particle physics. The ACME experiment searched for the eEDM with the world's highest sensitivity using cold ThO polar molecules (ACME II). In ACME III, SiPMs will be used for detection of fluorescent photons (the fundamental signal of the experiment) instead of PMTs, which were used in the previous measurement. We have developed an optimized SiPM module, based on a 16-channel SiPM array. Key operational parameters are characterized, including gain and noise. The SiPM dark count rate, background light sensitivity, and optical crosstalk are found to all be well suppressed and more than sufficient for the ACME III application.
