Optimizing the position resolution of a Z-stack microchannel plate resistive anode detector for low intensity signals

B B Wiggins; E Richardson; D Siwal; S Hudan; R T deSouza

doi:10.1063/1.4927457

Optimizing the position resolution of a Z-stack microchannel plate resistive anode detector for low intensity signals

Rev Sci Instrum. 2015 Aug;86(8):083303. doi: 10.1063/1.4927457.

Authors

B B Wiggins¹, E Richardson¹, D Siwal¹, S Hudan¹, R T deSouza¹

Affiliation

¹ Department of Chemistry and Center for Exploration of Energy and Matter, Indiana University, 2401 N. Milo B. Sampson Ln., Bloomington, Indiana 47408, USA.

PMID: 26329177
DOI: 10.1063/1.4927457

Abstract

A method for achieving good position resolution of low-intensity electron signals using a microchannel plate resistive anode detector is demonstrated. Electron events at a rate of 7 counts s(-1) are detected using a Z-stack microchannel plate. The dependence of position resolution on both the distance and the potential difference between the microchannel plate and resistive anode is investigated. Using standard commercial electronics, a measured position resolution of 170 μm (FWHM) is obtained, which corresponds to an intrinsic resolution of 157 μm (FWHM).