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Toroidal and poloidal plasma rotation in the reversed field pinch RFX

L Carraro, M E Puiatti, F Sattin, P Scarin, M Valisa1998年Plasma Physics and Controlled FusionIF 2.2出版社

In this paper, the toroidal and poloidal rotation velocities measured in the reversed field pinch device RFX from the Doppler shift of impurity ion lines are presented and their relation with the plasma velocity is discussed. It is found that the toroidal velocity at the edge has the opposite direction with respect to the core toroidal velocity, indicating a shear of the plasma rotation velocity of about . Starting from the rotation measurements and the momentum equation, a one-dimensional impurity diffusion model for the core plasma and a Monte Carlo code for the edge region are used to estimate the radial electric field, that is found to be around outward directed in the plasma core, and about inward directed at the edge, consistent with that measured at the edge by Langmuir probes.

日本語訳

本論文では、反転磁場ピンチ装置RFXにおいて、不純物イオン輝線のドップラーシフトから測定されたトロイダル方向およびポロイダル方向の回転速度と、プラズマ流速との関係について述べる。端部におけるトロイダル方向の回転速度は、中心部のトロイダル方向回転速度と逆向きであることが見出され、これは約[数値]のプラズマ回転速度のシア(ずれ)を示している。回転速度の測定結果と運動量保存方程式に基づき、中心部プラズマに対しては一次元不純物拡散モデルを、端部領域に対してはモンテカルロコードを用いて、半径方向電場を推定した。その結果、中心部プラズマでは外向きの、端部では内向きの半径方向電場がそれぞれ約[数値]であると見積もられ、これはラングミュアプローブによる端部での測定結果と一致する。

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Reversed field pinchRFXPlasma rotation
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