Joint Annual Meeting of the Swiss and Austrian Physical Society 2023

【333】Monitoring of the radiation damage induced aging of the LHCb SciFi tracker SiPMs during the first year of Run 3.

6 Sept 2023, 17:30

15m

Room 118

Talk Nuclear, Particle- and Astrophysics (TASK) Nuclear, Particle- & Astrophysics (TASK - FAKT)

Speaker

Federico Ronchetti (EPFL - Ecole Polytechnique Federale Lausanne (CH))

Description

We studied the radiation induced damage of the SiPM photo-detectors of the LHCb SciFi Tracker during the first year of Run 3. The bias current monitoring allows to evaluate the Dark Count Rate (DCR) and leads to an estimation of the detector aging as a function of the integrated luminosity. During the YETS the detector was monitored at room temperature and the effect of annealing (reduction of DCR in absence of the beam) was observed. In early 2023 a dedicated cooling temperature scan was performed and the DCR as a function of temperature in the [-50, 20]°C range was recorded and compared to expected values from R&D.

Presentation materials

SPS2023.pdf