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Localized heat deposition on tokamak first wall due to ripple-trapped loss of suprathermal ions produced by NBI

K. Tani, H. Kishimoto1982年被引用 9Nuclear FusionIF 3出版社

Heat deposition on the first wall due to ripple-trapped loss particles produced in the slowing-down process of injected beam ions is investigated in a reactor-grade tokamak. Ripple-trapped particles enter specific narrow areas of the first wall in the course of their toroidal drift and cause a significantly large heat loading, which will become one of the important problems in the design of the tokamak first wall. Localized heat loads due to ripple-trapped loss ions may reach a magnitude of 1 MW·m−2 for the next-generation tokamak.

日本語訳

注入ビームイオンの減速過程で生成されるリップル捕捉損失粒子による第一壁への熱堆積を、炉級トカマクにおいて調査した。リップル捕捉粒子は、そのトロイダルドリフトの過程で第一壁の特定の狭い領域に入り込み、著しく大きな熱負荷を引き起こす。これはトカマク第一壁の設計における重要な問題の一つとなるであろう。リップル捕捉損失イオンによる局所的な熱負荷は、次世代トカマクでは1 MW·m−2の大きさに達する可能性がある。

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Neutral beam injectionFirst wall
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