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Pellet injection experiment on NBI current-free plasmas in Heliotron E

S. Sudo, O. Motojima, M. Sato, H. Zushi, F. Sano, K. Kondo, T. Mutoh, S. Besshou, T. Mizuuchi, H. Kaneko1985年被引用 19Nuclear FusionIF 3出版社

The first pellet injection experiments on NBI-heated current-free plasmas in Heliotron E have been carried out. The pellet and plasma species are hydrogen. The increment of line-averaged density is up to 8.2 × 1019m−3, which is consistent with particle numbers of 1020 contained in a pellet used in the experiment. The behaviour of the plasma is studied in two cases of magnetic field strength, B = 1.9 T and B = 0.94 T. The density after pellet injection decays slowly (50–150 ms) in most cases, but in some cases with B = 0.94 T it decays rapidly (< 10 ms). This may be related to power balance.

日本語訳

ヘリオトロンEにおけるNBI加熱された無電流プラズマへの最初のペレット入射実験が実施された。ペレットとプラズマの種は水素である。線平均密度の増分は最大8.2 × 1019m−3であり、これは実験で使用されたペレットに含まれる1020個の粒子数と一致する。プラズマの挙動は、磁場強度B = 1.9 TおよびB = 0.94 Tの2つの場合について調べられた。ペレット入射後の密度は、ほとんどの場合ゆっくりと減衰する(50–150 ms)が、B = 0.94 Tのいくつかの場合では急速に減衰する(< 10 ms)。これはパワーバランスに関連している可能性がある。

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Neutral beam injectionPellet injectionHeliotron
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