论文标题
首次证明使用LG-SIPMS进行TPC的光学读数
First Demonstration of the Use of LG-SiPMs for Optical Readout of a TPC
论文作者
论文摘要
本文介绍了一种基于线性分级的硅光电层层（LG-SIPM）的新方法，用于时间投影室（TPC）。这是一个对光子敏感的检测器，在Trento（FBK）的Fondazione Bruno Kessler开发了出色的时机和2D位置分辨率。 LG-SIPM产生时间变化的电压信号，用于重建TPC内部产生的电离轨道的3D位置和能量。这项工作中使用的TPC包含室温CF $ _4 $ $ _4 $气体，其压力为100 mbar，并带有两个Thgem，以产生次要闪烁光。使用的准$^{241} $ am source（q $_α$ = 5.486 meV）用于产生电离轨道。证明了这些轨道的成功重建，并通过改变TPC中轨道的几何形状来表征该方法的一致性。还描述了能量重建和沉积研究，证明了LG-SIPM作为光学TPC读数的潜在选择。
This paper describes a new method for optical readout of Time Projection Chambers (TPCs), based on the Linearly Graded Silicon Photomultiplier (LG-SiPM). This is a single photon-sensitive detector with excellent timing and 2D position resolution developed at Fondazione Bruno Kessler, Trento (FBK). The LG-SiPM produces time-varying voltage signals that are used to reconstruct the 3D position and energy of ionisation tracks generated inside the TPC. The TPC used in this work contained room-temperature CF$_4$ gas at a pressure of 100 mbar, with two THGEMs to produce secondary scintillation light. A collimated $^{241}$Am source (Q$_α$ = 5.486 MeV) was used to produce the ionisation tracks. The successful reconstruction of these tracks is demonstrated, and the consistency of the methodology characterised through varying the geometry of the tracks within the TPC. Energy reconstruction and deposition studies are also described, demonstrating the feasibility of the LG-SiPM as a potential option for optical TPC readout.
