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Published January 1, 2021 | Version v1
Journal article Open

Construction and commissioning of CMS CE prototype silicon modules

Creators

  • 1. Bogazici Univ, TR-34342 Istanbul, Turkey
  • 2. Georgian Tech Univ, 77 Kostava Str, GE-0175 Tbilisi, Georgia
  • 3. Natl Cent Univ Taipei NCU, 300 Jhongda Rd, Jhongli 32001, Taiwan
  • 4. Int Intergovt Org, Joint Inst Nucl Res JINR, 6 Joliot Curie St, Moscow 141980, Russia
  • 5. Texas Tech Univ, Lubbock, TX 79409 USA
  • 6. Univ Iowa, 203 Van Allen Hall, Iowa City, IA 52242 USA
  • 7. Carnegie Mellon Univ, 5000 Forbes Ave, Pittsburgh, PA 15213 USA
  • 8. Brown Univ, 182 Hope St, Providence, RI 02912 USA
  • 9. Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA
  • 10. Cukurova Univ, TR-01330 Adana, Turkey
  • 11. Russian Acad Sci, Inst Nucl Res, 60th Oct Anniversary Prospekt 7A, Moscow 117312, Russia
  • 12. CERN, Esplanade Particules 1, CH-1211 Geneva 23, Switzerland
  • 13. Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany
  • 14. Univ Maryland, College Pk, MD 20742 USA
  • 15. Natl Tech Univ Athens, Heroon Polytechneiou St, Athens 15780, Greece

Description

As part of its HL-LHC upgrade program, the CMS collaboration is developing a High Granularity Calorimeter (CE) to replace the existing endcap calorimeters. The CE is a sampling calorimeter with unprecedented transverse and longitudinal readout for both electromagnetic (CE-E) and hadronic (CE-H) compartments. The calorimeter will be built with similar to 30,000 hexagonal silicon modules. Prototype modules have been constructed with 6-inch hexagonal silicon sensors with cell areas of 1.1 cm(2), and the SKIROC2-CMS readout ASIC. Beam tests of different sampling configurations were conducted with the prototype modules at DESY and CERN in 2017 and 2018. This paper describes the construction and commissioning of the CE calorimeter prototype, the silicon modules used in the construction, their basic performance, and the methods used for their calibration.

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