Radiation hardness test of Pr:LuAG and BSO scintillators

Author

Iwashita, Tomoko ; Miyabayash, Kenkichi

Author_Institution

Dept. of Phys., Nara Women´´s Univ., Nara, Japan

fYear

2010

fDate

Oct. 30 2010-Nov. 6 2010

Firstpage

278

Lastpage

279

Abstract

We measured radiation hardness of two kinds of newly developed inorganic scintillators, Pr:LuAG and BSO. The amounts of irradiation for our test were γ-rays up to 100 Gy and neutrons up to 10¹² neutrons/cm² fluence. These radiation doses are corresponding to SuperKEKB/Belle-II 10 years operation. For γ-rays, both Pr:LuAG and BSO scintillators showed reasonably good radiation hardness, (-11±3)% and (-6±3)%, respectively, for 100 Gy. For neutrons, at 10¹¹ neutrons/cm², light output degradation was -6% in both scintillators. At 10¹² neutrons/cm², BSO is still found to be robust, light output decrease is -8%, while Pr:LuAG shows -36% degradation.

Keywords

dosimeters; gamma-ray detection; radiation hardening (electronics); solid scintillation detectors; BSO scintillator; Belle-II 10; SuperKEKB; gamma-ray test; inorganic scintillator; light output degradation analysis; radiation dose rate; radiation hardness test; Crystals; Degradation; Neutrons; Optical attenuators; Optical variables measurement; Radiation effects; Inorganic scintillators; radiation hardness;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE

Conference_Location

Knoxville, TN

ISSN

1095-7863

Print_ISBN

978-1-4244-9106-3

Type

conf

DOI

10.1109/NSSMIC.2010.5873764

Filename

5873764