Radiation Damage Mechanism in PbWO4 Crystal and Radiation Hardness Quality Control of PWO Scintillators for CMS

The optical damage induced by UV light in PbWO4 crystals is found to be similar to that induced by g radiation. Due to the peculiarities of optical absorption in PbWO4, the damage induced by UV light is a bulk process. This fact has important consequences for the approach to be adopted both for the...

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Detalles Bibliográficos
Autores principales: Baccaro, Stefania, Auffray, Etiennette, Borgia, Bruno, Cavallari, Francesca, Cecilia, Angelica, Dafinei, Ioan, Diemoz, Marcella, Lecoq, Paul, Longo, Egidio, Montecchi, Marco, Organtini, Giovanni, Salvatori, S
Lenguaje:eng
Publicado: 1997
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/687544
Descripción
Sumario:The optical damage induced by UV light in PbWO4 crystals is found to be similar to that induced by g radiation. Due to the peculiarities of optical absorption in PbWO4, the damage induced by UV light is a bulk process. This fact has important consequences for the approach to be adopted both for the use of the crystal as scintillator and for the qualification methods foreseen in the Regional Centres of the ECAL CMS Collaboration.

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