Radiation Hardness Study of CsI(Tl) Crystals for Belle II Calorimeter

The Belle II calorimeter (at least, its barrel part) consists of CsI(Tl) scintillation crystals which have been used at the Belle experiment. We perform the radiation hardness study of some typical Belle crystals and conclude their light output reductions are acceptable for Belle II experiment where...

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Detalles Bibliográficos
Autores principales: Matvienko, D V, Kuzmin, A S, Sedov, E V, Shwartz, B A
Lenguaje:eng
Publicado: 2017
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.23727/CERN-Proceedings-2017-001.55
http://cds.cern.ch/record/2301998
Descripción
Sumario:The Belle II calorimeter (at least, its barrel part) consists of CsI(Tl) scintillation crystals which have been used at the Belle experiment. We perform the radiation hardness study of some typical Belle crystals and conclude their light output reductions are acceptable for Belle II experiment where the absorption dose can reach 10 krad during the detector operation. CsI(Tl) crystals have high stablity and low maintenance cost and are considered as possible option for the calorimeter of the future Super-Charm-Tau factory (SCT) in Novosibirsk. Our study demonstrates sufficiently high radiation hardness of CsI(Tl) crystals for SCT conditions.

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