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Transition of fluctuation characteristics observed by a heavy ion beam probe in the JIPP T-IIU tokamak

Y Hamada, A Nishizawa, Y Kawasumi, A Fujisawa, H Iguchi1997年Fusion Engineering and DesignIF 1.7出版社

AbstractAs the sample volume of a heavy ion beam probe (HIBP) is swept from the centre to the plasma boundary in the JIPP T-IIU tokamak, we observe that the correlation time of the density turbulence increases appreciably and the dominant frequency decreases appreciably. The transition is located near rap = 0.6 in a low density gas-puffed plasma and an NBI-heated (neutral beam injection) plasma. Its position moves outwards in an R.F. heated plasma.

日本語訳

JIPP T-IIUトカマクにおいて、重イオンビームプローブ(HIBP)の試料体積を中心からプラズマ境界に向かって掃引すると、密度乱流の相関時間が著しく増加し、卓越周波数が著しく減少することが観測される。この遷移は、低密度ガス噴射プラズマおよびNBI加熱(中性粒子ビーム入射加熱)プラズマにおいて、rap = 0.6付近に位置する。その位置は、R.F.加熱プラズマでは外側へ移動する。

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Ion beamsHeavy ion beamJIPPIon beam probeT-IIU
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