Compact X-rays detectors made of 1/2 inch Ce:LaBr3 crystals of cubic shape with SiPM array readout have been developed for the FAMUexperiment at RIKEN-RAL, to instrument regions of difficult access. Due to the high photon yield of Ce:LaBr3 it was possible to use a simple readout scheme based on CAEN V1730 digitizers, without a dedicated amplification stage. The drift with temperature of SiPM gain was corrected by using CAEN A7885D regulated power supply chips with temperature feedback. Energy resolutions (FWHM) around 3:5% at the 137Cs peak and around 9% at the 57Co peak were obtained.

中文翻译：

---

Ce:LaBr3 晶体具有 SiPM 阵列读数和温度控制，用于 RAL 的 FAMU 实验

紧凑型 X 射线探测器由 1/2 英寸立方形 Ce:​​LaBr3 晶体制成，具有 SiPM 阵列读出功能，已开发用于 RIKEN-RAL 的 FAMU 实验，用于难以进入的仪器区域。由于 Ce:LaBr3 的高光子产率，可以使用基于 CAEN V1730 数字化仪的简单读出方案，而无需专用放大级。SiPM增益随温度的漂移通过使用具有温度反馈的CAEN A7885D稳压电源芯片进行校正。在 137Cs 峰处获得了大约 3:5% 的能量分辨率 (FWHM)，在 57Co 峰处获得了大约 9% 的能量分辨率 (FWHM)。