The upgrade of the CMS hadron calorimeter with silicon photomultipliers

Published 26 January 2017 © 2017 IOP Publishing Ltd and Sissa Medialab srl
, , Topical Workshop on Electronics for Particle Physics (TWEPP2016) Citation N. Strobbe 2017 JINST 12 C01080 DOI 10.1088/1748-0221/12/01/C01080

1748-0221/12/01/C01080

Abstract

The upgrade of the hadron calorimeter of the CMS experiment at the CERN Large Hadron Collider is currently underway. The endcap sections will be upgraded in the winter of 2016–2017 and the barrel sections during the second LHC long shutdown in 2019. The existing photosensors will be replaced with about 16 000 new silicon photomultipliers (SiPMs), resulting in the first large installation of SiPMs in a radiation environment. All associated front-end electronics will also be upgraded. This paper discusses the motivation for the upgrade and provides a description of the new system, including the SiPMs with associated control electronics and the front-end readout cards.

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10.1088/1748-0221/12/01/C01080