For operation at the High Luminosity Large Hadron Collider (LHC), the ATLAS experiment is building a new all-silicon inner tracker (ITk). The production and testing of thousands of silicon pixel and strip modules is required to cover the estimated 180 m2 of the total surface area. A compact, affordable and robust module characterization system is required for in-situ testing prior any test beam campaign or installation. A test bench setup based on an infrared laser was developed at IJCLab, allowing also for the use of micro-metric precision scanning with a radioactive source. A detailed schema of the setup, operating principles and testing methods are described in this paper, together with the first results obtained with a FE-I4 silicon pixel module.
@article{arxiv.2112.07633,
title = {Developing an accurate and robust tool for pixel module characterization},
author = {D. Hohov and A. Lounis and A. Falou and E. - L. Gkougkousis and A. Bassalat},
journal= {arXiv preprint arXiv:2112.07633},
year = {2022}
}