1. Suppression of runaway electrons during electron cyclotron resonance heating on HL-2A tokamak.
- Author
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Jin-Wei Yang, Yi-Po Zhang, Xu Li, Xian-Ying Song, Guo-Liang Yuan, Min Liao, Li-Qun Hu, Shi-Yao Lin, and Qing-Wei Yang
- Subjects
PHYSICS research ,PLASMA gases ,MAGNETIC fields ,PARTICLES (Nuclear physics) ,ELECTRON temperature ,ELECTRON cyclotron resonance sources ,TOROIDAL magnetic circuits - Abstract
The statistical analysis of heating effect and the cross-correlation analysis of both electron temperature and loop voltage have been done during electron cyclotron resonance heating (ECRH). The behavior of runaway electrons in the flattop phase during ECRH are analyzed using experimental data. It is shown that the runaway population is indeed suppressed or even quenched when the toroidal electric field E
T is reduced below the threshold electric field Eth by high-power and long-duration ECRH. The physical mechanism of runaway suppression is explored by the resonant interaction between the electron cyclotron waves and the energetic runaway electrons. [ABSTRACT FROM AUTHOR]- Published
- 2010
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