Journal Article/Contribution to a conference proceedings

PUBDB-2025-05672

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The SiPM-on-tile system of the CMS HGCAL

Laudrain, A. (Corresponding author)DESY*

2025
EDP Sciences Les Ulis

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Please use a persistent id in citations: doi:10.1051/epjconf/202532000041

Abstract: For the CMS High-Granularity Calorimeter (HGCAL) for HL-LHC, scintillator tiles, readout with individual on-tile silicon photomultipliers (SiPMs), will be used where the radiation levels are expected to be less than 5 × 1013 neq/cm2. The scintillator tiles will be mounted on highly-integrated “tile-boards” (typical area 30 × 30 cm2) that host up to 108 tiles and their SiPMs, as well as front-end electronics, control and powering components. A dedicated LED system will be implemented to monitor stability e↵ects. We present recent developments for the HGCAL scintillator material and SiPMs, including quantification of the scintillator and SiPM radiation-damage impact, modelling of SiPM noise and its evolution with time, SiPM production testing and quality control plans, and tests of tile-boards in laboratories and beam tests.

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)
2. Technol. zukünft. Teilchenph. Experim. (FTX)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. LHC: CMS

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