A fast spatial resolution optimizing method for track-ion using a GEM detector based on the time information

TL;DR

This paper introduces a rapid vertex reconstruction method for incident ions in GEM detectors utilizing time information from electronics, significantly improving spatial resolution over traditional methods.

Contribution

A novel fast spatial resolution optimization technique based on time information for GEM detectors, inspired by TPC principles, demonstrated with experimental validation.

Findings

Achieved a spatial resolution of 0.45 mm with the new method.

Outperformed the traditional center of gravity method which had 9.10 mm resolution.

Validated the method with a 2D-readout THGEM detector experiment.

Abstract

In this work, a fast method of vertex reconstructing for incident ions in GEM detectors was proposed. As inspired by the Time Projection Chamber (TPC), the time information of the consecutive signal samples from Front End Electronics (FEE) was employed. To demonstrate the method, an experiment involving a 2D-readout THGEM detector with an APV-25 FEE was taken. With one experiment dependent parameter in the analysis, the proposed method led to a spatial resolution of 0.45 mm, compared with the same number of 9.10 mm from the traditional center of gravity method.