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Safety and environment aspects of a fusion power reactor

G Marbach, I Cook1999年Fusion Engineering and DesignIF 1.7出版社

AbstractA fusion power plant possesses not only intrinsic advantages with respect to safety compared to other sources of energy, but also a negligible long term impact on the environment provided certain precautions are taken in its design and in the selection of structural materials. This was studied by the SEAFP (Safety and Environment Assessment of Fusion Power). Programme and studies for the long term have been pursued in Europe in the Framework of the SEAFP2 Program. An attempt is made to distinguish the safety options to be integrated into a fusion reactor. A vast range of postulated accidents have been analyzed involving parametric studies and special consideration has also been given to the waste management. The safety approach is reviewed in the light of the safety principles and nuclear regulatory reference system existing at international level. In addition lessons have been learnt from the safety analysis performed for ITER. It is confirmed that it is possible to fully benefit from the advantages of fusion energy if safety and environmental concerns are taken into account when considering the first prospective studies of a reactor design. Improvements in this way will need the continuation of R&D on reactor design and materials as well as specific R&D on safety aspects.

日本語訳

核融合発電所は、他のエネルギー源と比較して本質的な安全性の利点を有するだけでなく、設計と構造材料の選択において特定の予防措置を講じることを条件に、長期的な環境への影響も無視できる程度である。これは、SEAFP(核融合発電の安全性と環境評価)によって研究された。欧州では、SEAFP2計画の枠組みの中で長期的な研究が進められてきた。核融合炉に統合すべき安全オプションを区別する試みがなされている。パラメトリック研究を含む広範な想定事故が分析され、廃棄物管理にも特別な配慮が払われている。安全アプローチは、国際的に存在する安全原則と原子力規制の参照体系に照らして検討されている。さらに、ITERのために実施された安全解析から教訓が得られている。最初の将来設計研究を考慮する際に、安全と環境の懸念を考慮に入れれば、核融合エネルギーの利点を完全に活用することが可能であることが確認されている。この方向での改善には、炉設計と材料に関する研究開発の継続に加え、安全面に特化した研究開発が必要となる。

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