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Overview on management of radioactive wastes from fusion facilities: ITER, DEMOnstration machines and power plants
https://repo.qst.go.jp/records/86313
https://repo.qst.go.jp/records/863132ac6216d-7fa1-4443-b3ff-bf68957755f8
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-06-15 | |||||
| タイトル | ||||||
| タイトル | Overview on management of radioactive wastes from fusion facilities: ITER, DEMOnstration machines and power plants | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Maria Gonzalez de Vicente, Sehila
× Maria Gonzalez de Vicente, Sehila× A Smith, Nicholas× Laila, El-Guebaly× Ciattaglia, Sergio× Di Pace, Luigi× R Gilbert, Mark× Mandoki, Robert× Rosanvallon, Sandrine× Yoji, Someya× Kenji, Tobita× Torcy, David× Yoji, Someya× Kenji, Tobita |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In the absence of official standards and guidelines for nuclear fusion plants, fusion designers adopted, as much as possible, the well-established standards for fission based Nuclear Power Plants (NPPs). This often implies interpretation and/or extrapolation, due to differences in structures; systems and components; materials; safety mitigation systems; risks; etc. This approach could result in considering overconservative measures that might lead to an increase of cost and complexity with limited or negligible improvements. One important topic is the generation of radioactive waste in fusion power plants. Fusion waste is significantly different from the fission NPP waste, i.e., the quantity of fusion waste is much larger, however it is mostly comprised of Low-Level Waste (LLW) and Intermediate Level waste (ILW). Notably, the waste does not contain many long-lived isotopes, mainly tritium and other activation isotopes but no-transuranic elements. Important benefit of fusion is the lower decay heat removal and rapid radioactivity decay overall. The dominant fusion wastes are primarily composed of structural materials, such as different types of steel, including reduced activation ferritic martensitic (RAFM) steels, like EUROFER97 and F82H; AISI 316L; bainitic; and JK2LB. The relevant long-lived radioisotopes come from alloying elements such as niobium, molybdenum, nickel, carbon, nitrogen, copper, and aluminum and also from uncontrolled impurities (of the same elements, but also e.g., of potassium and cobalt). After irradiation, these isotopes might preclude disposal in LLW repositories. Fusion power should be able to avoid creating High-Level Waste (HLW), but the amount of fusion ILW and LLW will be significant. Thus, the efforts of recycling and clearance are essential to support fusion deployment, reclaim resources (through less ore mining), minimize the radwaste burden for future generations, and continue holding the promise of fusion energy production with low environmental impact. | |||||
| 書誌情報 |
Nuclear Fusion 巻 62, p. 085001, 発行日 2022-05 |
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| 出版者 | ||||||
| 出版者 | IoP Publishing, International Atomic Energy Agency | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0029-5515 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1741-4326/ac62f7 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://iopscience.iop.org/article/10.1088/1741-4326/ac62f7 | |||||
