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※ 半角英数字
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Research and development of digital technologies to explore radiation source distributions for exposure reduction; Current research and development progress

被ばく低減のための線源分布探索に係るデジタル技術の研究開発; 現在までの研究開発進捗

鈴木 政浩 ; 青木 勇斗; 山口 隆司 ; 町田 昌彦  ; 宮村 浩子  ; 岡本 孝司

Suzuki, Masahiro; Aoki, Yuto; Yamaguchi, Takashi; Machida, Masahiko; Miyamura, Hiroko; Okamoto, Koji

東京電力福島第一原子力発電所(以下、1Fという)における燃料デブリ取り出しの本格的実施に先立ち、線量率の高い原子炉建屋(以下、「R/B」という)内において、安全なアクセスルート構築を行うためには、高強度線源の除染や遮へい等の環境改善が必要である。原子力機構は、現場の線量率観測データ等を基に高強度線源の逆推定を行い、サイバー空間(VR)だけでなく、物理空間(MR、AR)も交えて、除染や遮へい等の効果を検討するシステム開発を進めている。本報告では、現在までの研究開発成果を示すとともに、1Fへの現場適用を図るために必要となる高機能化の取組みの概要を紹介する。

In order to facilitate the full-scale implementation of fuel debris removal at the Tokyo Electric Power Fukushima Daiichi Nuclear Power Plant (hereinafter referred to as 1F), it is necessary to establish a safe access route within the highly radiation-intensive reactor building (hereinafter referred to as "R/B"). For the purpose of the establishment, it requires environmental improvements such as decontamination of highly-intensive radiation sources and shielding measures. Based on the radiation dose measurement data at the site, Japan Atomic Energy Agency (JAEA) has examined inverse estimation scheme of highly-intensive radiation sources and developed a system that incorporates not only virtual reality (VR) but also mixed reality (MR, AR) to evaluate the effectiveness of decontamination and shielding measures. This report presents an overview of the research and development achievements to date and introduces necessary efforts for enhancing functionality to ensure practical applications at 1F.

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