Published November 1, 2010
| public
Journal Article
Laser monitoring for the CMS ECAL
- Creators
- Rogan, Christopher
- CMS ECAL Group
Abstract
The Compact Muon Solenoid (CMS) detector at the LHC is equipped with a high precision lead tungstate crystal electromagnetic calorimeter (ECAL). To ensure the stability of the calorimetric response at the level of a few per mille, every channel of the detector is monitored with a laser system. This system enables corrections for fluctuations in the detector response with high precision, in particular the expected radiation induced changes in the crystal transparency. We describe the implementation of the laser monitoring system and report results from tests on the fully equipped supermodules of the ECAL. Specifically, we discuss results concerning the dynamics of crystal transparency change from dedicated irradiation studies in test beams.
Additional Information
© 2010 Published by Elsevier B.V. Available online 4 March 2010.Additional details
- Eprint ID
- 21369
- Resolver ID
- CaltechAUTHORS:20101214-152904802
- Created
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2010-12-15Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field