Influence of Gold Coating and Interplate Voltage on the Performance of Chevron Micro-Channel Plates for the Time and Space Resolved Single Particle Detection

TL;DR

This study examines how gold coating and interplate voltage influence the performance of Chevron Micro-Channel Plates in single particle detection, revealing improvements in count rate and spatial accuracy.

Contribution

It provides new insights into how gold coating and interplate voltage affect detector performance, especially in spatial resolution and count rate enhancement.

Findings

Gold coating increases count rate and pulse amplitude.

Interplate voltage enhances count rates.

Non-zero interplate voltage improves spatial accuracy by 20%, gold coating decreases it by 30%.

Abstract

We present a study of two di fferent sets of Micro-Channel Plates used for time and space resolved single particle detection. We investigate the eff ects of the gold coating and that of introducing an interplate voltage between the spatially separated plates. We fi nd that the gold coating increases the count rate of the detector and the pulse amplitude as previously reported for non-spatially resolved setups. The interplate voltage also increases count rates. In addition, we nd that a non-zero interplate voltage improves the spatial accuracy in determining the arrival position of incoming single particles (by 20%) while the gold coating has a negative e ect (by 30%).