Position Sensitive Gaseous Photomultipliers

TL;DR

This paper reviews advances in position sensitive gaseous photomultipliers, highlighting their effectiveness for large-area Cherenkov imaging, low-rate applications, and compatibility with magnetic fields, including recent developments in visible light sensitivity.

Contribution

It provides a comprehensive review of recent technological progress in position sensitive gaseous detectors, especially those using CsI photoconverters and MPGD innovations.

Findings

Effective for large-area Cherenkov imaging

Suitable for low rate and magnetic field environments

Recent progress in visible light sensitivity of MPGDs

Abstract

Advances in the technologies associated with position sensitive gaseous detectors especially featuring CsI as reflective photoconverters will be reviewed. These photodetectors represent the most effective solution for what concerns cost and performance in the case of large area Cherenkov imaging applications in relatively low rate (or low occupancy) high energy physics and astrophysics experiments. Moreover, they are the only choice when the Cherenkov detector is embedded in a magnetic field. Recently proposed single photon MPGDs (Micropattern Gaseous Detectors) will be also discussed in view of the successful efforts so far made to extend their sensitivity to visible light. With some modifications, photosensitive gaseous detectors can also be used in the imaging of X-rays and particles.