Title :
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
fDate :
Oct. 26 2007-Nov. 3 2007
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;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0922-8
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2007.4437266
