Study of the radiation hardness of the pure CsI crystals

This study was initiated by the Belle detector upgrade plan including the replacement of the CsI(Tl) crystals in the endcaps by the pure CsI. Within this work five samples of pure CsI crystals were irradiated by the beam of 0.6 MeV γ -quanta. The absorbed dose accumulated in several runs reached 55...

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Bibliographic Details
Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 598; no. 1; pp. 273 - 274
Main Authors Bedny, I.V., Bondar, A.E., Cherepkov, V.V., Epifanov, D.A., Golkovsky, M.G., Kuzmin, A.S., Oreshkin, S.B., Shebalin, V.E., Shwartz, B.A., Usov, Yu.V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2009
Subjects
Crystals
Pure CsI
Radiation hardness
Scintillators
Scintillators
Radiation hardness
Crystals
Pure CsI
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Summary:This study was initiated by the Belle detector upgrade plan including the replacement of the CsI(Tl) crystals in the endcaps by the pure CsI. Within this work five samples of pure CsI crystals were irradiated by the beam of 0.6 MeV γ -quanta. The absorbed dose accumulated in several runs reached 55 krad for two samples and 13 krad for three others. Four of these samples were found to satisfy the super B-factory conditions. The light output reduction for them does not exceed 15% at 13 krad of absorbed dose. One sample had poor radiation resistance.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2008.08.106