Resolution studies with the DATURA beam telescope

TL;DR

This paper investigates the resolution capabilities of the DATURA beam telescope, a EUDET-type device utilizing CMOS MIMOSA 26 sensors, through detailed sensor characterization and analysis of tracking precision.

Contribution

It provides a comprehensive resolution study of the DATURA beam telescope and introduces methods to evaluate sensor performance and tracking accuracy.

Findings

Intrinsic sensor resolution measured using an iterative pull method

Analysis of residual and intra-pixel distributions

Enhanced understanding of beam telescope performance

Abstract

Detailed studies of the resolution of a EUDET-type beam telescope are carried out using the DATURA beam telescope as an example. The EUDET-type beam telescopes make use of CMOS MIMOSA 26 pixel detectors for particle tracking allowing for precise characterisation of particle sensing devices. A profound understanding of the performance of the beam telescope as a whole is obtained by a detailed characterisation of the sensors themselves. The differential intrinsic resolution as measured in a MIMOSA 26 sensor is extracted using an iterative pull method and various quantities that depend on the size of the cluster are discussed: the residual distribution, the intra-pixel residual-width distribution and the intra-pixel density distribution of track incident positions.