论文标题
在线控制增益漂移，使用用于读数的SIPM阵列的温度$ _3 $：CE Crystals
Online control of the gain drift with temperature of SiPM arrays used for the readout of LaB$_3$:Ce crystals
论文作者
论文摘要
实验室$ _3 $：CE晶体已被引入用于医学物理学的辐射成像，具有光电培训或单个SIPM读数。使用1/2“和1” labr3：CE晶体（从不同生产商）追捕R-D，以实现带有SIPM阵列读数的紧凑型大面积探测器（高达cm $^2 $ a），旨在高产量，良好的能量分辨率，良好的探测器线性和快速响应的低点X射线响应。在Riken-Ral Muon设施的FAMU项目中发现了自然应用，该设施的旨在精确度量质子Zemach半径，以解决所谓的“质子半径拼图”，这是由PSI处质子电荷半径的最近触发的。目的是检测特征X射线大约130 KEV。其他应用可以在医学物理学（例如宠物和伽马射线天文学）中预见。一个限制因素是SIPM阵列随温度的增益漂移，从而导致检测器的FWHM能量分辨率恶化。为了解决这个问题，开发了一个基于CAEN A7585数字电源的自定义NIM模块。将提出ADVANSID，SENSL，HAMAMATSU的SIPM阵列校正增益漂移的测试结果。在$^{137} $ CS峰值上，使用Hamamatsu S13461阵列获得了典型的Labr $ _3 $：CE Crystal的能量分辨率。与PMT获得的最佳结果相比，这很好。
LaB$_3$:Ce crystals have been introduced for radiation imaging in medical physics, with photomultiplier or single SiPM readout. An R-D was pursued with 1/2" and 1" LaBr3:Ce crystals, from different producers, to realize compact large area detectors (up to some cm$^2$ area) with SiPM array readout, aiming at high light yields, good energy resolution, good detector linearity and fast time response for low-energy X-rays. A natural application was found inside the FAMU project at RIKEN-RAL muon facility, that aims at a precise measure of the proton Zemach radius to solve the so-called "proton radius puzzle", triggered by the recent measure of the proton charge radius at PSI. The goal is the detection of characteristic X-rays around 130 keV. Other applications may be foreseen in medical physics, such as PET, and gamma-ray astronomy. A limiting factor is the gain drift of SiPM arrays with temperature, that give a deterioration of the detector's FWHM energy resolution. To solve this problem, a custom NIM module, based on CAEN A7585 digital power supply, was developed. Test results of the correction of gain drift with temperature for SiPM arrays from Advansid, Sensl, Hamamatsu will be presented. At the $^{137}$Cs peak, an energy resolution better than 3% was obtained for a typical LaBr$_3$:Ce crystal, using Hamamatsu S13461 arrays. This compares well with best available results obtained with PMTs.
