The upgrade of the CMS hadron calorimeter with silicon photomultipliers

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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.

Original languageEnglish (US)
Article numberC01080
JournalJournal of Instrumentation
Volume12
Issue number1
DOIs
StatePublished - Jan 26 2017
Externally publishedYes

Bibliographical note

Funding Information:
NS is supported by Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359 with the United States Department of Energy and by an Early Career Award (FNAL 14-05, PI J.Hirschauer) from the Department of Energy, Office of Science, Office of High Energy Physics.

Publisher Copyright:
© 2017 IOP Publishing Ltd and Sissa Medialab srl.

Keywords

  • Calorimeters
  • Front-end electronics for detector readout
  • Radiation-hard electronics

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