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Tritium-producing blanket for fusion engineering facility

A.R. Raffray, M.A. Abdou, M.S. Tillack, M.Z. Youssef, Y. Watanabe1989年Fusion Engineering and DesignIF 1.7出版社

The usefulness of ITER to fusion development can be substantially increased if the design parameters and features are selected so as to maximize reactor relevance without significantly increasing the risk. One critical area in which reactor relevance and risk are major issues is the tritium-producing blanket. A helium-cooled solid breeder blanket is found to offer the highest potential for a low-risk reactor-relevant blanket that can meet all the ITER requirements. It has many attractive features that include: (1) a large design margin to account for uncertainties in predicting the effects of the fusion environment; (2) an available data base that is rapidly expanding worldwide; (3) flexibility in accommodating changes in the operating parameters of ITER (e.g. fusion power and wall load); (4) solid breeder operation at reactor relevant temperatures and flexibility in setting the helium temperature to reduce risk and/or optimize the structure temperature while keeping the helium pressure at a modest level; and (5) safety features, including the use of inert gas with no chemical reaction or corrosion, a low activation solid breeder, and multiple containment of tritium.

日本語訳

ITERの核融合開発における有用性は、炉心関連性を最大化しつつリスクを有意に増大させないように設計パラメータと特徴を選択すれば、大幅に向上させることができる。炉心関連性とリスクが主要な論点となる重要分野の一つが、トリチウム増殖ブランケットである。ヘリウム冷却固体増殖材ブランケットは、ITERの全要件を満たすことができる低リスクかつ炉心関連性の高いブランケットとして、最も高い可能性を有することが見出された。その多くの魅力的な特徴には以下が含まれる:(1)核融合環境の影響を予測する際の不確実性を吸収する大きな設計マージン;(2)世界的に急速に拡大している利用可能なデータベース;(3)ITERの運転パラメータ(例:核融合出力、壁負荷)の変更に対する柔軟な適応性;(4)炉心関連温度での固体増殖材の運転、ならびにヘリウム圧力を適度な水準に維持しつつリスク低減および/または構造材温度の最適化を図るヘリウム温度設定の柔軟性;(5)化学反応や腐食を生じない不活性ガスの使用、低放射化固体増殖材、トリチウムの多重閉じ込めを含む安全特性。

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iter中精度(概要文一致)

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Tritium
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