Response function measurement of Gd2Si2O7 scintillator for neutrons

Author

Haruna, Jun ; Kaneko, Junichi H. ; Higuchi, Mikio ; Kawamura, Sohan ; Saeki, Syouhei ; Yagi, Yasuhiro ; Ishibashi, Hiroyuki ; Fujita, Fumiyuki ; Homma, Akira ; Furusaka, Michihiro ; Kiyanagi, Yoshiaki

Author_Institution

Hokkaido Univ., Sapporo

Volume

2

fYear

2007

fDate

Oct. 26 2007-Nov. 3 2007

Firstpage

1421

Lastpage

1425

Abstract

Response function measurement of Gd₂Si₂O₇ (GPS) scintillator for thermal neutrons was carried out. GPS single crystals exhibits light output twice higher than GSO single crystals for thermal neutrons. In addition, similar experiments with GPS scintillators of 50 mum in thickness were conducted to improve signal-to-noise ratio between neutrons and gamma-ray. GPS powder samples, size of each particle was 50 mum, showed lower light output than that of GPS single crystals, because absorption and scattering of scintillation light at the sample surface reduced the correction efficiency of scintillation light. Optimization of the particle size, reflectors and techniques to fix the GPS sample will improve the powder density and detection efficiency because powder samples were directly coated on a glass plate in this experiment.

Keywords

neutron detection; solid scintillation detectors; GPS single crystals; Gd₂Si₂O₇ scintillator; response function measurement; scintillation light absorption; scintillation light scattering; thermal neutrons; Crystals; Electromagnetic wave absorption; Glass; Global Positioning System; Light scattering; Neutrons; Particle scattering; Powders; Signal to noise ratio; Solid scintillation detectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE

Conference_Location

Honolulu, HI

ISSN

1095-7863

Print_ISBN

978-1-4244-0922-8

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2007.4437266

Filename

4437266