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再処理施設における放射性物質の移行挙動に関する研究,7; ホット試験

Study on release and transport of aerial radioactive materials in reprocessing plant, 7; Hot test

山根 祐一  ; 天野 祐希 ; 柳田 佳徳; 川崎 泰; 佐藤 真人; 早坂 裕美; 田代 信介 ; 阿部 仁 ; 内山 軍蔵 ; 上田 吉徳*; 藤根 幸雄*; 横塚 宗之*; 柴田 勇木*; 小玉 貴司*; 松岡 伸吾*

Yamane, Yuichi; Amano, Yuki; Yanagida, Yoshinori; Kawasaki, Yasushi; Sato, Makoto; Hayasaka, Hiromi; Tashiro, Shinsuke; Abe, Hitoshi; Uchiyama, Gunzo; Ueda, Yoshinori*; Fujine, Sachio*; Yokotsuka, Muneyuki*; Shibata, Yuki*; Kodama, Takashi*; Matsuoka, Shingo*

高レベル濃縮廃液が設計上の想定を超えて、沸とうして乾固状態に至る過程における放射性物質の放出挙動に係るデータを取得している。本稿では、小規模の試験装置により100mLの実廃液を電気炉で加熱して、300$$^{circ}$$Cに達するまでの放射性物質の放出量を測定し、その放射性物質の廃液中での初期濃度との関係を調べた結果を報告する。

The release and transport characteristics of radioactive materials at a boiling accident of the high active liquid waste (HALW) in a reprocessing plant have been studied for improving experimental data of source terms of the boiling accident. This paper describes an experiment using a small test device having an electric furnace, in which 100 mL of the HALW was heated from room temperature to 300$$^{circ}$$C and the amount of materials released during heating was measured. The amount of materials as a function of its initial concentration in the HALW is reported.

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