A simple approach for characterizing the spatially varying sensitivity of microchannel plate detectors

Denis Aglagul; Brian Kaufman; Chuan Cheng; Thomas Weinacht; Tobias Saule; Carlos A Trallero-Herrero; Andrei Nomerotski

doi:10.1063/5.0092346

A simple approach for characterizing the spatially varying sensitivity of microchannel plate detectors

Rev Sci Instrum. 2022 Jul 1;93(7):075108. doi: 10.1063/5.0092346.

Authors

Denis Aglagul¹, Brian Kaufman¹, Chuan Cheng¹, Thomas Weinacht¹, Tobias Saule², Carlos A Trallero-Herrero², Andrei Nomerotski³

Affiliations

¹ Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA.
² Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046, USA.
³ Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA.

PMID: 35922295
DOI: 10.1063/5.0092346

Abstract

We present a simple approach to characterize the spatial variation of the gain in microchannel plate (MCP) coupled to phosphor detectors using single electron or photon hits. The technique is easy to implement and general enough to be extended to other kinds of detectors. We demonstrate the efficacy of the approach on both laboratory and Monte Carlo generated datasets. Furthermore, we use the approach to measure the variation in gain over time as the MCP is exposed to an increasing number of electrons.