A two-dimensional position-sensitive microchannel plate detector realized with two independent one-dimensional resistive anodes

TL;DR

This paper presents a novel two-dimensional position-sensitive microchannel plate detector using two independent one-dimensional resistive anodes, achieving high resolution with a simple and effective design.

Contribution

It introduces a new anode scheme with two perpendicular resistive anodes for improved 2D position detection in MCP detectors.

Findings

Position resolution of 0.38 mm achieved

Detector has a sensitive area of 100 mm

Effective with 55Fe x-ray source

Abstract

A two-dimensional position-sensitive microchannel plate detector, with a {\O}100 mm sensitive area and equipped with four integrated amplifiers, is realized with a new anode scheme. The anode is constructed by two independent one-dimensional resistive anodes, each consisting of an array of parallel copper strips connected by resistors in series on a printed circuit board. The arrays are perpendicularly aligned to realize two-dimensional position resolution, with the intervals between the adjacent strips on the PCB nearer to the MCP cut out to allow electrons passing through. The detector is tested with an 55Fe x-ray source, and a position resolution of 0.38 mm is achieved.