Fishbone instability excited by barely trapped electrons

Zhong-Tian Wang, Yong-Xing Long, Jia-Qi Dong, Long Wang, Zonca Fulvio

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Abstract

Fishbone instability excited by barely trapped suprathermal electrons (BTSEs) in tokamaks is investigated theoretically. The frequency of the mode is found to close to procession frequency of BTSEs. The growth rate of the mode is much smaller than that of the ideal magnetohytrodynamic (MHD) internal kink mode that is in contrast to the case of trapped ion driven fishbone instability. The analyses also show that spatial density gradient reversal is necessary for the instability. The correlation of the results with experiments is discussed. ©2005 Chinese Physical Society and IOP Publishing Ltd.
Original languageEnglish
Pages (from-to)158 - 160
Number of pages3
JournalChinese Physics Letters
Volume23
Issue number1
DOIs
Publication statusPublished - 1 Jan 2006
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Wang, Z-T., Long, Y-X., Dong, J-Q., Wang, L., & Fulvio, Z. (2006). Fishbone instability excited by barely trapped electrons. Chinese Physics Letters, 23(1), 158 - 160. https://doi.org/10.1088/0256-307X/23/1/046