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Combined ICRF heating and adiabatic compression in TUMAN-3

K G Shakhovets, L G Askinazi, V I Afanasiev, N I Vinogradov, S G Goncharov, M P Gryasnevich, V V Dyschenko, A B Izvozchikov, E R Its, A A Korotkov1988年Plasma Physics and Controlled FusionIF 2.2出版社

Major and minor-radius adiabatic compression and minority-ion ICRF heating have been studied in the small aspect ratio TUMAN-3 tokamak. During the minor-radius adiabatic compression, the density profile becomes narrower and the ion temperature increases adiabatically. In the combined major and minor-radius compression, an effective electron density compression, electron heating and ion heating close to adiabatic are observed. The ICRF heating is mainly in the mode conversion regime but the ion heating by absorption of the Bernstein wave at the second harmonic of the light impurity (N+6, O+7) ions is observed. When the adiabatic compression follows by ICRF heating, the bulk ion temperature rises from 110 eV (in ohmic) to 250 eV after compression.

日本語訳

小アスペクト比トカマクTUMAN-3において、主半径方向および副半径方向の断熱圧縮と少数イオンICRF加熱が研究された。副半径方向の断熱圧縮中、密度分布はより急峻になり、イオン温度は断熱的に上昇する。主半径方向と副半径方向の複合圧縮では、実効的な電子密度圧縮、電子加熱、および断熱に近いイオン加熱が観察される。ICRF加熱は主にモード変換領域で行われるが、軽不純物(N+6、O+7)の第二高調波におけるバーンスタイン波の吸収によるイオン加熱も観察される。ICRF加熱に続いて断熱圧縮が行われる場合、バルクイオン温度は圧縮後に110 eV(オーミック加熱時)から250 eVへ上昇する。

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