Performance of Diagnostic Neutral Beam for the HT-7 Tokamak

HU Chundong(胡纯栋); XIE Yahong(谢亚红)※; LIU Sheng(刘胜); SHI Yuejiang(石跃江); XIE Yuanlai(谢远来); LIANG Lizhen(梁立振); LI Jun(李军); LIU Zhimin(刘智民)

Plasma Science and Technology > 2010 > 12(5): 540-542.

HU Chundong(胡纯栋), XIE Yahong(谢亚红)※, LIU Sheng(刘胜), SHI Yuejiang(石跃江), XIE Yuanlai(谢远来), LIANG Lizhen(梁立振), LI Jun(李军), LIU Zhimin(刘智民). Performance of Diagnostic Neutral Beam for the HT-7 Tokamak[J]. Plasma Science and Technology, 2010, 12(5): 540-542.

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Performance of Diagnostic Neutral Beam for the HT-7 Tokamak

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

Funds: Supported by National Natural Science Foundation of China (No. 10875146)

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Abstract

Abstract

Diagnostic neutral beam (DNB), combined with spectral diagnostics, is employed to measure the ion temperature in HT-7. The factors affecting the extracted beam are studied in the experiment for the high performance diagnostic neutral beam. A 6.5 A extracted hydrogen current at 43 keV of 100 ms was obtained after optimization. The extracted beam has a proton ratio as high as 40%, and can penetrate into the core plasma after neutralization to measure the ion temperature effectively.
- diagnostic neutral beam,
- beam quality,
- spectral diagnostics,
- arc efficiency

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