Analysis of humidity sensitivity of silicon strip sensors for ATLAS upgrade tracker, pre- and post-irradiation

0579779 - FZÚ 2024 RIV US eng J - Journal Article
Fernandez-Tejero, J. - Affolder, A. - Bach, E. - Kroll, Jiří - Latoňová, Věra - Mikeštíková, Marcela - Zatočilová, Iveta … Total 34 authors
Analysis of humidity sensitivity of silicon strip sensors for ATLAS upgrade tracker, pre- and post-irradiation.
Journal of Instrumentation. Roč. 18, č. 2 (2023), č. článku P02012. ISSN 1748-0221. E-ISSN 1748-0221
R&D Projects: GA MŠMT(CZ) LTT17018; GA MŠMT(CZ) LM2018104
Institutional support: RVO:68378271
Keywords : particle tracking detectors (Solid-state detectors) * radiation-hard detectors * Si microstrip and pad detectors * Solid state detectors
OECD category: Particles and field physics
Impact factor: 1.3, year: 2022
Method of publishing: Open access

During the prototyping phase of the new ATLAS Inner-Tracker (ITk) strip sensors, a degradation of the device breakdown voltage at high humidity was observed. Although the degradation was temporary, showing a fast recovery in dry conditions, the study of the influence of humidity on the sensor performance was critical to establish counter-measures and handling protocols during production testing in order to ensure the proper performance of the upgraded detector. The work presented here has the objective to study for the first time the breakdown voltage deterioration in presence of ambient humidity of ATLAS ITk production-layout strip sensors with different surface properties, before and after proton, neutron and gamma irradiations. A study of the humidity sensitivity of miniature ATLAS ITk strip sensors, before and after proton irradiations, is also presented to compare the sensitivity of devices with different sizes.
Permanent Link: https://hdl.handle.net/11104/0349055