-ray spectroscopy study in intense -ray fields using a small LBC scintillator for an in situ nuclear fuel debris assay

Kaburagi, Masaaki ; Ishii, Junya*; Kato, Masahiro*

A -ray spectroscopy system using a small cubic LaBrCl $_{3-x}$ scintillator measuring the crystal dimensions of 5 5 5 mm $^{3}$ was developed for an in situ nuclear fuel debris assay. In an intense $^{137}$ Cs radiation field, this study showed that the system had good energy resolution (4%) at dose rates up to 0.407 Gy/h. The full energy peak at 662 keV can be identified at dose rates of up to 2.97 Gy/h.

Language	:	English
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Meeting title	:	International Conference on Nuclear Fuel Cycle (GLOBAL2024)
Held date	:	2024/10
Location (city)	:	Tokyo
Location (country)	:	Japan
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DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident; Gamma Spectroscopy; Nuclear Fuel Debris; Intense Gamma-ray fields; Small Scintillator; Digital Pulse Processing
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Cooperating Institute	:	産業技術総合研究所

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Registration No. : BB20240091
JAEA Abstracts No. :
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