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Fast-wave ion-cyclotron and first-harmonic heating of large tokamaks

J.E. Scharer, B.D. McVey, T.K. Mau1977年被引用 27Nuclear FusionIF 3出版社

Supplementary wave heating is examined for two-ion-species plasmas from the fundamental tritium cyclotron resonance (ω = ωCT) to the first deuteron harmonic (ω = 2ωCD). At the first harmonic, it is found that a sufficiently large parallel wavelength greatly reduces the region of confluence between the fast wave and ion Bernstein wave. Power absorption considerations neglecting mode conversion processes show that first-harmonic heating efficiency is relatively insensitive to the species concentrations and that a dominant ion heating can be expected. For minority heating at the fundamental deuteron resonance, it is shown that inclusion of the two-ion hybrid resonance absorption considerably lowers the Q from the case where only minority species cyclotron damping is considered.

日本語訳

補助波動加熱は、トリチウムの基本サイクロトロン共鳴(ω = ωCT)から重陽子の第一高調波(ω = 2ωCD)までの二種イオン種プラズマについて調べられる。第一高調波では、十分に大きな平行波長が高速波とイオンバーンスタイン波の間の合流領域を大幅に減少させることが見出される。モード変換過程を無視したパワー吸収の考察は、第一高調波加熱効率が種の濃度に対して比較的鈍感であり、支配的なイオン加熱が期待できることを示す。重陽子の基本共鳴における少数種加熱については、二種イオン混成共鳴吸収を含めることが、少数種のサイクロトロン減衰のみを考慮した場合と比較してQをかなり低下させることが示される。

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