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Lower hybrid experiments on PLT using grills with various n∥ spectral widths

J.E. Stevens, R.E. Bell, S. Bernabei, A. Cavallo, T.K. Chu, P.L. Colestock, W. Hooke, J. Hosea, F. Jobes, T. Luce1988年被引用 54Nuclear FusionIF 3出版社

Coupling structures for lower hybrid current drive experiments have, until now, been smaller than a free space wavelength and have had a correspondingly broad wavenumber spectrum. The paper reports the results of experiments on the PLT tokamak using a 16-waveguide grill (2.2 wavelengths) which produces a very narrow n∥ = k∥c/ω spectrum. Experimental results from the 16-waveguide grill are compared with results from three other PLT grills with less sharply defined n1 spectra. The current drive figure of merit, , is approximately 40% higher for the experiments with the 16-waveguide coupler than for previously reported experiments on PLT, in spite of the larger 'spectral gap'. The experimental results are consistent with the first-pass damping of a large fraction of the launched spectrum.

日本語訳

低混成波電流駆動実験のための結合構造は、これまで自由空間波長よりも小さく、それに対応して広い波数スペクトルを有していた。本論文は、非常に狭いn∥ = k∥c/ωスペクトルを生成する16導波管グリル(2.2波長)を用いたPLTトカマクでの実験結果を報告する。16導波管グリルによる実験結果は、n1スペクトルの鋭さが劣る他の3つのPLTグリルによる結果と比較される。電流駆動の性能指数、 、は、より大きな「スペクトルギャップ」にもかかわらず、16導波管結合器を用いた実験では、PLTで以前に報告された実験よりも約40%高い。実験結果は、入射スペクトルの大部分の最初の通過減衰と整合的である。

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