Performance of UAV-based airborne gamma-ray spectrometry for wide-area radiation monitoring of contaminated sites

Ji, Y.-Y.*; Joung, S.*; Ji, W.*; Ochi, Kotaro ; Sasaki, Miyuki ; Sanada, Yukihisa

This study reports the development and field validation of KAERI's UAV-based gamma-ray spectrometry system equipped with LaBr $_{3}$ (Ce) detectors. Joint surveys with JAEA near Fukushima Daiichi Nuclear Power Plant (FDNPP) showed reliable dose rate estimation after applying altitude based attenuation correction, through discrepancies occurred in sloped terrain. Incorporating terrain data is recommended to enhance accuracy for emergency response applications.

Language	:	English
Journal	:	Journal of Radiological Protection
Volume	:	45
Number	:	4
Pages	:	p.042501_1 - 042501_11
Publication Year/Month	:	2025/12
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Paper URL	:	https://doi.org/10.1088/1361-6498/ae0cd4
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Keywords	:	Fukushima Daiichi Nuclear Power Station Accident; 福島第一原子力発電所事故; Airborne gamma-ray spectrometry; UAV; LaBr $_{3}$ (Ce); dose rate; attenuation correction
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Cooperating Institute	:	Korea Atomic Energy Research Institute

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Registration No. : AA20250518
JAEA Abstracts No. : 53001118
Paper Submission No. : 29996

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