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Spectroscopic measurements of ion temperature in ATC tokamak with RF and neutral-beam heating

S. Suckewer, E. Hinnov1977年被引用 36Nuclear FusionIF 3出版社

Measurements of ion temperatures in the ATC tokamak by means of Doppler broadening of various ion lines are described, and typical results presented for the various auxiliary heating experiments: compression, neutral beam, lower hybrid and ion cyclotron frequency heating. Radial resolution of the temperature measurements is achieved by utilizing spectrum lines of ions of different ionization potentials: O VII λ 1623 Å, C V λ 2271 Å and C IV λ 1548 Å, which are emitted from regions of different electron temperature. Measurement at a given radial location is performed as a function of time by repeated scanning of the line contour in times 1.5–3.0 ms. The results indicate variations of heating efficiency with location and with power input level.

日本語訳

ATCトカマクにおける各種イオン輝線のドップラー広がりを用いたイオン温度測定について述べ、圧縮加熱、中性粒子ビーム加熱、低ハイブリッド加熱、イオンサイクロトロン周波数加熱の各補助加熱実験における代表的な結果を示す。温度測定の径方向分解能は、異なる電離ポテンシャルを持つイオンのスペクトル線、すなわちO VII λ 1623 Å、C V λ 2271 Å、C IV λ 1548 Åを用いることによって達成される。これらの輝線は、異なる電子温度の領域から放射される。特定の径方向位置における測定は、1.5~3.0 msの時間で輝線輪郭を繰り返し走査することにより、時間の関数として行われる。結果は、加熱効率が位置および投入電力レベルによって変化することを示している。

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