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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 土田 大貴水飼 秋菜青野 竜士原賀 智子石森 健一郎亀尾 裕
- Publication Date
- 2022-07
- Publication Date (W3CDTF)
- 2022
- Alternative Title
- Analysis of the radioactivity concentrations in low-level radioactive waste generated from JPDR, JRR-3 and JRR-4 Facilities
- Periodical title
- JAEA-Data/Code 2022-004
- Target Audience
- 一般
- Note (General)
- 出版タイプ: NA日本原子力研究開発機構の研究施設等から発生する放射性廃棄物は、放射能レベルに応じて将来的に浅地中処分される予定であり、埋設処分を開始するまでに、廃棄体の放射能濃度を評価する方法を構築する必要がある。そこで、原子力科学研究所バックエンド技術部では、研究施設等廃棄物に対する放射能濃度評価方法の検討に資するため、原子力科学研究所内に保管されているJPDR、JRR-3及びJRR-4から発生した放射性廃棄物より分析試料を採取し、放射化学分析を実施した。本報告書は、令和元年度に取得した20核種($^{3}$H、$^{14}$C、$^{36}$Cl、$^{60}$Co、$^{63}$Ni、$^{90}$Sr、$^{94}$Nb、$^{99}$Tc、$^{\rm108m}$Ag、$^{129}$I、$^{137}$Cs、$^{152}$Eu、$^{154}$Eu、$^{234}$U、$^{238}$U、$^{238}$Pu、$^{239+240}$Pu、$^{241}$Am、$^{244}$Cm)の放射能濃度データについて整理し、放射能濃度評価方法の検討のための基礎資料としてまとめたものである。Radioactive wastes generated from nuclear research facilities in Japan Atomic Energy Agency are planning to be buried in the near surface disposal field. Therefore, it is required to establish the method to evaluate the radioactivity concentrations of radioactive wastes until by the beginning of disposal. In order to contribute to this work, we collected and analyzed samples generated from JPDR, JRR-3 and JRR-4. In this report, radioactivity concentrations of 20 radionuclides ($^{3}$H, $^{14}$C, $^{36}$Cl, $^{60}$Co, $^{63}$Ni, $^{90}$Sr, $^{94}$Nb, $^{99}$Tc, $^{\rm 108m}$Ag, $^{129}$I, $^{137}$Cs, $^{152}$Eu, $^{154}$Eu, $^{234}$U, $^{238}$U, $^{238}$Pu, $^{239+240}$Pu, $^{241}$Am, $^{244}$Cm) were determined based on radiochemical analysis and summarized as basic data for the study of evaluation method of radioactive concentration.
- Source
- /JAEA-Data-Code-2022-004.pdf (fulltext)