2022/07/25 by The CMS HCAL Collaboration
Physics and Astronomy · #Particle Detector Development and Performance #Radiation Detection and Scintillator Technologies #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.2207.11960
A study has been performed to understand the effects of radiation damage on various plastic scintillator tiles considered for a possible upgrade of the hadron calorimeter of the CMS detector. Measurements were made with unirradiated tiles and with tiles that had been irradiated in the CMS collision hall to a dose of 44 kGy. Results are presented for the tiles of different shapes in terms of the energy spectrum, efficiency as a function of the position at which each tile was hit, as well as light yield. All the tiles showed a light reduction of up to about 50%. The tiles with the shape currently used in the CMS detector did not see increased non-uniformity of light collection, while a significant disuniformity was observed for the tiles considered as alternatives.