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First measurements of the particle confinement in a reversed field pinch by the laser ablation method

P.G. Carolan, A. Patel, M.C. Sexton, M.J. Walsh1990年被引用 6Nuclear FusionIF 3出版社

The letter reports the first use of laser ablation of trace impurities into a reversed field pinch (RFP) similar to that used in tokamaks, but selecting different impurity elements appropriate to the confinement times of present RFPs. The ionization rates from helium-like carbon and boron are sufficiently slow to allow measurements of particle confinement times from line intensity decay rates of the near UV transitions. A zero-dimensional treatment, incorporating impurity ionization and confinement, is used to interpret the temporal behaviour of the line intensity. The results obtained yield typical particle confinement times of about 1 ms.

日本語訳

本レターは、トカマクで使用されるものと類似しているが、現在のRFPの閉じ込め時間に適した異なる不純物元素を選択した、逆転磁場ピンチ(RFP)への微量不純物のレーザーアブレーションの初使用を報告するものである。ヘリウム様炭素およびホウ素からの電離率は十分に遅く、近紫外遷移の線強度減衰率からの粒子閉じ込め時間の測定を可能にする。不純物の電離と閉じ込めを組み込んだ零次元処理を用いて、線強度の時間的挙動を解釈する。得られた結果は、約1 msの典型的な粒子閉じ込め時間を与える。

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Reversed field pinchAblationLaser ablation
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