Resolution Studies of GEM/Timepix Detector with 5 GeV electrons

TL;DR

This study evaluates the spatial resolution of a GEM/TimePix detector prototype with 5 GeV electrons, focusing on cluster reconstruction accuracy and comparison with Monte Carlo simulations for charged particle tracking.

Contribution

It introduces a detailed analysis of a GEM/TimePix detector's resolution using 5 GeV electrons, highlighting the impact of different clustering algorithms.

Findings

Spatial resolution varies with drift distance

Cluster algorithms influence reconstruction accuracy

Results align with Monte Carlo predictions

Abstract

This contribution investigates a prototype of a TPC readout with a highly pixelated CMOS ASIC, which is an option for charged particles tracking of the ILC. A triple GEM stack was joined with a TimePix and MediPix2 chip (pixel size of 55$\times$55 $\mu m^2$) and its readout properties were investigated with 5 GeV electrons. The spatial resolution of the cluster center reconstruction was determined as a function of drift distance using different cluster alhoritms and compared with Monte Carlo predictions.