Helicon plasma discharge in a toroidal magnetic field of the tokamak

C. G. Jin, T. Yu, Y. Zhao, Y. Bo, C. Ye, J. S. Hu, L. J. Zhuge, S. B. Ge, X. M. Wu, H. T. Ji, J. G. Li

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Abstract

A helicon wave plasma (HWP) discharge in an experimental advanced superconducting tokamak device with a toroidal magnetic field of 2 T is investigated. The HWP with an electron density of 1012cm-3 was produced with two 4-turn flat spiral antennas in series that are perpendicular to the toroidal magnetic field and driven by a 13.56-MHz radio-frequency (RF) source at a power of 1500 W, a toroidal magnetic field of 2 T, and a pressure (helium) of 1 Pa. The increase of the toroidal magnetic field from 0.5 to 2 T, the increase of the RF power from 500 to 1500 W, and the decrease of the pressure (helium) from 1 to 0.01 Pa were found to improve the plasma uniformity from the CCD images.

Original languageEnglish (US)
Article number5985545
Pages (from-to)3103-3107
Number of pages5
JournalIEEE Transactions on Plasma Science
Volume39
Issue number11 PART 2
DOIs
StatePublished - Nov 1 2011

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Keywords

  • Experimental advanced superconducting tokamak (EAST)
  • helicon
  • strong magnetic field

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    Jin, C. G., Yu, T., Zhao, Y., Bo, Y., Ye, C., Hu, J. S., Zhuge, L. J., Ge, S. B., Wu, X. M., Ji, H. T., & Li, J. G. (2011). Helicon plasma discharge in a toroidal magnetic field of the tokamak. IEEE Transactions on Plasma Science, 39(11 PART 2), 3103-3107. [5985545]. https://doi.org/10.1109/TPS.2011.2161344