The TORCH PMT, a close packing, multi-anode, long life MCP-PMT for Cherenkov applications
The TORCH PMT, a close packing, multi-anode, long life MCP-PMT for Cherenkov applications
复制标题
TORCH PMT，一种适合切伦科夫应用的密堆积、多阳极、长寿命 MCP-PMT
DOI：
10.1016/j.nima.2014.05.035
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Milnes J
中科院分区：
文献类型：
--
作者：
Milnes J
Photek 目前正在与 CERN 进行为期三年的开发计划，为拟议的 TORCH 探测器生产新型方形 PMT，旨在升级 LHCb 实验。 PMT 将基于微通道板，以实现其固有的计时精度，并具有需要开发的三个主要新颖功能： 它应该能够产生 5 C/cm2 的累积阳极电荷，而不会出现任何明显的灵敏度下降。通过多阳极输出，它应该能够在“y”方向上实现 0.4 mm 的空间分辨率，在“x”方向上实现 6 mm 的空间分辨率。最后，它应允许在 2 个相对侧上紧密堆积，“x”方向上的有效区域填充因子目标为 88%，但“y”方向上没有具体限制。我们将描述迄今为止完成的工作，包括用于寿命评估的原型的构建和测试、多阳极读数的软件建模以及我们对继续该项目的建议。
Photek are currently in a three year development programme with CERN to produce a novel square PMT for the proposed TORCH detector which is aimed at the upgrade of the LHCb experiment. The PMT will be microchannel plate based for the inherent timing accuracy that this brings, and has three main novel features that need to be developed: It should be able to produce 5 C/cm2of accumulated anode charge without any noticeable degradation in sensitivity. It should be able to achieve a spatial resolution in the “y” direction of 0.4 mm and 6 mm in the “x” direction through a multi-anode output. Finally it should allow for close packing on 2 opposing sides with an active area fill factor target of 88% in the “x” direction but no specific restriction in the “y” direction. We will describe the work completed so far including the building and testing of prototypes intended for life-time evaluation, the software modelling of the multi-anode readout and our proposals for the continuation of the project.