著者
谷 啓二 飛田 健次 西尾 敏 飯尾 俊二 筒井 広明 青木 尊之
出版者
社団法人プラズマ・核融合学会
雑誌
プラズマ・核融合学会誌 (ISSN:09187928)
巻号頁・発行日
vol.80, no.11, pp.931-934, 2004-11-25
被引用文献数
1 1

Studies were made on ripple losses of fusion produced alpha particles in a low-aspect-ratio tokamak reactor (VECTOR) by using an orbit-following Monte-Carlo code. Alpha particles are well confined in VECTOR. In a low-aspect-ratio tokamak, the dependence of ripple losses on the number of toroidal-field (TF) coils N is very weak. Assuming a toroidal peaking factor of 2 for the heat load due to loss particles, about 1.5% and 1.0% of TF ripple at the outer edge of plasma might be allowable for the first wall with and without cooling system, respectively. In both cases, the number of TF-coils can be reduced to about 4.

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