论文标题
魔术望远镜PMT相机中的三个硅光电峰检测器模块的性能评估
Performance Evaluation of Three Silicon Photomultiplier Detector Modules within the MAGIC Telescopes PMT-based camera
论文作者
论文摘要
魔术是一个由两种成像大气Cherenkov望远镜（IACT）组成的系统，位于加那利岛的La Palma岛上。每个望远镜的成像相机由1039个光电倍增管（PMTS）组成。我们基于七个像素的硅光电层流（SIPM）开发了三个检测器模块，每个像素在机械上和电子上与魔术摄像机中使用的像素兼容。这些原型模块安装在成像摄像头PMT旁边，并并行操作。为了实现每个像素的类似活动区域，我们使用了7至9次sips来产生复合像素。一个这样的像素内的SIPM信号被积极求和以保持快速信号脉冲形状。测试了两种不同的PCB设计的热性能。我们介绍了Cherenkov的模拟以及夜空（Lons）的光线。基于那些，我们计算此成像应用的信噪比（SNR）。我们将我们的期望与基于SIPM的检测器模块之一的测量结果进行了比较。
MAGIC is a system of two imaging atmospheric Cherenkov telescopes (IACTs) located on the Canary island of La Palma. Each telescope's imaging camera consists of 1039 photomultiplier tubes (PMTs). We developed three detector modules based on silicon photomultipliers (SiPMs) of seven pixels each that are mechanically and electronically compatible with those used in the MAGIC camera. These prototype modules are installed next to the PMTs in the imaging camera and are operated in parallel. To achieve a similar active area per pixel we used seven to nine SiPMs for producing a composite pixel. The SiPM signals within one such pixel are actively summed up for retaining the fast signal pulse shapes. Two different PCB designs are tested for thermal performance. We present our simulations of Cherenkov and light of the night sky (LoNS) responses. Based on those we calculate the signal-to-noise ratio (SNR) for this imaging application. We compare our expectations with the measurements of one of the SiPM-based detector modules.
