Radiation hardness qualification of PbWO4 scintillation crystals for the CMS Electromagnetic Calorimeter

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Published 25 March 2010 Published under licence by IOP Publishing Ltd
, , Citation The CMS Electromagnetic Calorimeter Group et al 2010 JINST 5 P03010 DOI 10.1088/1748-0221/5/03/P03010

1748-0221/5/03/P03010

Abstract

Ensuring the radiation hardness of PbWO4 crystals was one of the main priorities during the construction of the electromagnetic calorimeter of the CMS experiment at CERN. The production on an industrial scale of radiation hard crystals and their certification over a period of several years represented a difficult challenge both for CMS and for the crystal suppliers. The present article reviews the related scientific and technological problems encountered.

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10.1088/1748-0221/5/03/P03010