High detection efficiency ZnS scintillator for a fiber-coded linear neutron detector for thermal neutron scattering instruments

Nakamura, Tatsuya ; Schooneveld, E. M.*; Rhodes, N. J.*; Katagiri, Masaki; Tsutsui, Noriaki*; To, Kentaro ; Sakasai, Kaoru ; Soyama, Kazuhiko

High detector efficiency ZnS/ $^{6}$ LiF scintillator and ZnS/ $^{10}$ B $_{2}$ O $_{3}$ ceramic scintillator were developed for a fiber-coded linear neutron detector for thermal neutron detection. Detector performances of the detector equipped with such scintillator strips were evaluated in terms of neutron detector efficiency, sensitivity, and quiet counts rate. The detector equipped with the ZnS/ $^{6}$ LiF scintillator that contained twice amount of $^{6}$ Li compared to the conventional scintillator (ZnS/ $^{6}$ LiF scintillator produced by AST Co Ltd) exhibited about 30% higher detector efficiency for 1- neutrons. The fiber-coded detector equipped with the ZnS/ $^{10}$ B $_{2}$ O $_{3}$ ceramic scintillator also exhibited about 30% larger neutron counts than the detector made with the conventional scintillator and exhibited 40% shorter decay time than the conventional scintillator, indicating a potential for higher count rate capability.

Language	:	English
Journal	:	2008 IEEE Nuclear Science Symposium Conference Record (CD-ROM)
Volume	:
Number	:
Pages	:	p.1215 - 1219
Publication Year/Month	:	2009/02
Meeting title	:	2008 IEEE Nuclear Science Symposium and Medical Imaging Conference and 16th Room Temperature Semiconductor Detector Workshop
Held date	:	2008/10
Location (city)	:	Dresden
Location (country)	:	Germany
Patent information	:
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Paper URL	:	https://doi.org/10.1109/NSSMIC.2008.4774623
DOI for research data	:
Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
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Article of JAEA R&D Review	:
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Registration No. : BB20082441
JAEA Abstracts No. :
Paper Submission No. : 26787

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