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Title: Cosmic ray calibration of the PbWO4 crystal electromagnetic calorimeter of CMS

Abstract

The Compact Muon Solenoid experiment at the CERN LHC features a high precision PbWO4 crystal electromagnetic calorimeter. Each crystal is first precalibrated with a radioactive source and by means of optical measurements. After the assembly, each supermodule (1700 crystals) is exposed to comics rays.The comparison between intercalibration obtained from cosmic muons and electrons from test beam was performed at the end of 2004 for an initial set of 130 channels and showed that a precalibration with a statistical precision of 1 to 2% can be achieved within approximately one week. An important aspect of the comics muons analysis is that it is entirely based on the calorimeter data, without using any external tracking device.We will present the setup and results from the 2004 test as well as recent data recorded on many supermodule.

Authors:
 [1]
  1. University of Minnesota, 116 Church Street S.E., Minneapolis (United States)
Publication Date:
OSTI Identifier:
20891889
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 867; Journal Issue: 1; Conference: 12. international conference on calorimetry in high energy physics, Chicago, IL (United States), 5-9 Jun 2006; Other Information: DOI: 10.1063/1.2396977; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; CALIBRATION; CALORIMETERS; CERN LHC; COSMIC ELECTRONS; COSMIC MUONS; CRYSTALS; LEAD TUNGSTATES; RADIATION SOURCES; SOLENOIDS

Citation Formats

Franzoni, G. Cosmic ray calibration of the PbWO4 crystal electromagnetic calorimeter of CMS. United States: N. p., 2006. Web. doi:10.1063/1.2396977.
Franzoni, G. Cosmic ray calibration of the PbWO4 crystal electromagnetic calorimeter of CMS. United States. https://doi.org/10.1063/1.2396977
Franzoni, G. 2006. "Cosmic ray calibration of the PbWO4 crystal electromagnetic calorimeter of CMS". United States. https://doi.org/10.1063/1.2396977.
@article{osti_20891889,
title = {Cosmic ray calibration of the PbWO4 crystal electromagnetic calorimeter of CMS},
author = {Franzoni, G},
abstractNote = {The Compact Muon Solenoid experiment at the CERN LHC features a high precision PbWO4 crystal electromagnetic calorimeter. Each crystal is first precalibrated with a radioactive source and by means of optical measurements. After the assembly, each supermodule (1700 crystals) is exposed to comics rays.The comparison between intercalibration obtained from cosmic muons and electrons from test beam was performed at the end of 2004 for an initial set of 130 channels and showed that a precalibration with a statistical precision of 1 to 2% can be achieved within approximately one week. An important aspect of the comics muons analysis is that it is entirely based on the calorimeter data, without using any external tracking device.We will present the setup and results from the 2004 test as well as recent data recorded on many supermodule.},
doi = {10.1063/1.2396977},
url = {https://www.osti.gov/biblio/20891889}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 867,
place = {United States},
year = {Fri Oct 27 00:00:00 EDT 2006},
month = {Fri Oct 27 00:00:00 EDT 2006}
}