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Heat flux studies in a poloidal-divertor reversed-field pinch

D Ishijima, M Iida, S Masamune, N Oda, A Tanonaka, H Oshiyama1995年Plasma Physics and Controlled FusionIF 2.2出版社

Heat flux measurements have been performed with calorimeter probes in closed poloidal-divertor reversed-held pinch (RFP) discharges in the STE-2. A high heat flux with large anisotropy has been observed at the edge of the main plasma, indicating the existence of the fast edge electrons in divertor RFP discharges. The spatial distribution measurements show that a fraction of the fast edge electrons is also exhausted into the divertor chamber as fast (superthermal) electrons. It is also shown that most of the parallel heat flux in the divertor chamber is carried by the fast electrons.

日本語訳

熱流束測定が、STE-2における閉じたポロイダル・ダイバータ配位の逆転磁場ピンチ(RFP)放電において、カロリメータを用いて実施された。大きな異方性を有する高い熱流束が主プラズマの端部で観測され、これはRFP放電における高速電子の存在を示している。空間分布測定により、高速電子の一部がダイバータチャンバー内にも高速(超熱)電子として排出されることが示された。また、ダイバータチャンバー内の平行熱流束の大部分は高速電子によって運ばれることが示された。

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DivertorReversed field pinch
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