A normally-distributed crosstalk model for silicon photomultipliers
A normally-distributed crosstalk model for silicon photomultipliers
复制标题
硅光电倍增管的正态分布串扰模型
DOI：
10.1016/j.nima.2018.10.143
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Williams J
中科院分区：
文献类型：
--
作者：
Williams J
当微单元中的光子检测导致产生更多也被检测到的光子时，硅光电倍增管（SiPM）中就会发生光学串扰（OCT）。已经考虑了各种模型来预测实验数据，并取得了不同程度的成功。在本文中，我们介绍了正态分布串扰模型（NDCM），其中触发额外的微单元的概率是由一个2-D正态分布与标准偏差σ：一个设备特定的参数表示OCT光子传播路径长度方面的微单元间距。将NDCM的Monte Carlo（MC）模拟与现有模型和为切伦科夫望远镜阵列开发的X-S相机的实验数据进行了比较，这表明OCT在该设备中使用σ λ 5微单元发生。
Optical crosstalk (OCT) in silicon photomultipliers (SiPM) occurs when photon detection in a microcell leads to the production of further photons that are also detected. Various models have been considered to predict experimental data with varying degrees of success. In this paper, we introduce the Normally-Distributed Crosstalk Model (NDCM), where the probability of triggering additional microcells is given by a 2-d normal distribution with a standard deviation of σ: a device-specific parameter representing OCT photon propagation path length in terms of microcell pitch. Monte Carlo (MC) simulations of NDCM are compared to existing models and experimental data from the CHEC-S camera developed for the Cherenkov Telescope Array, which suggests that OCT occurs with a σ≈ 5 microcells in this device.