Studies of currentless, high-beta plasma in the Heliotron E device
- 1 December 1985
- journal article
- letter
- Published by IOP Publishing in Nuclear Fusion
- Vol. 25 (12) , 1783-1787
- https://doi.org/10.1088/0029-5515/25/12/009
Abstract
A currentless plasma with a volume-averaged beta value of 2% has been produced with neutral beam heating. Target plasmas were created by second harmonic resonance heating with electron cyclotron waves (150–350 kW and 53.2 GHz) at a magnetic field strength of 0.94 T. Neutral beam injection (23–30 keV and 1.3−2.6 MW) was used to heat the plasma further. MHD stable and unstable high-beta plasmas were observed. The Q-mode plasmas were produced with the help of intense neutral gas puffing. Properties of the MHD activity and confinement of high-beta plasmas are discussed and compared with theoretical studies.Keywords
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