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Criteria for defining low activation materials in fusion reactor applications

P Rocco, M Zucchetti1991年Fusion Engineering and DesignIF 1.7出版社

AbstractCriteria are proposed for defining low-activation materials. These criteria take into account the three fundamental characteristics of the reactor which will be affected by the neutron-induced radioactivity: radioactive emissions in routine and off-normal conditions, maintenance operations after a shutdown, and finally waste management and disposal aspects. The activation of some typical candidate fusion reactor structural materials (reference steels, reduced activation steels and non-ferrous low-activation alloys) has been simulated in power reactor-relevant conditions. The compliance of the candidate materials with the proposed criteria has been examined. It turns out that only non-ferrous materials can fulfil all the proposed low-activation requirements.

日本語訳

抄録 低放射化材料を定義するための基準を提案する。これらの基準は、中性子誘起放射能によって影響を受ける原子炉の3つの基本的特性、すなわち、通常時および異常時の放射性放出、停止後の保守作業、そして最終的には廃棄物管理と処分を考慮に入れている。いくつかの代表的な核融合炉構造材料の候補(参照鋼、低放射化鋼、非鉄低放射化合金)について、発電炉に関連する条件下での放射化をシミュレーションした。提案した基準に対する候補材料の適合性を検討した。その結果、提案されたすべての低放射化要件を満たすことができるのは非鉄材料のみであることが判明した。

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