论文标题
大面积LABR3：CE晶体由SIPM阵列读取，并具有改善的时机和温度增益控制控制
Large area LaBr3:Ce crystals read by SiPM arrays with improved timing and temperature gain drift control
论文作者
论文摘要
由1/2“或1”制成的紧凑型X射线探测器：LABR3：CE CECR晶体具有SIPM阵列读数的CE晶体，已为Riken-Ral的FAMU实验开发。目的是用传入的muons对质子Zemach半径进行精确测量。可以在医学物理学中找到其他应用，例如宠物，国土安全性和伽马射线天文学。由于LABR3的光子产量很高：CE可以使用基于CAEN V1730数字化的简单读数方案。使用Hamamatsu S13361或S14161阵列的探测器在CS137 CO57峰值时具有良好的FWHM能量分辨率，最多可达3％（8％），与Photomultipliper的读数获得的最佳结果相比，可以很好地进行比较。进行了详细的研究，以通过SIPM增益的温度在线纠正在线漂移，并减少检测器信号的上升/秋季时间，由于使用的SIPM阵列的容量较大，因此将其从1/2“ 1”探测器增加。
Compact X-rays detectors made of 1/2" or 1" :LaBr3:Ce crystals of cubic shape with SiPM array readout have been developed for the FAMU experiment at RIKEN-RAL. The aim is a precise measurement of the proton Zemach radius with incoming muons. Additional applications may be found in medical physics, such as PET, homeland security and gamma-ray astronomy. Due to the high photon yield of LaBr3:Ce it was possible to use a simple readout scheme based on CAEN V1730 digitizers. Detectors, using Hamamatsu S13361 or S14161 arrays, have good FWHM energy resolutions up to 3 % (8 %) at the Cs137 Co57) peak, comparing well with the best results obtained with a photomultiplier's readout. Detailed studies were performed to correct online the drift with temperature of SiPM gain and to reduce the risetime/falltime of detectors' signals, that increased going from 1/2" to 1" detectors, due to the larger capacity of the used SiPM arrays.
