Abstract
Effects of high-power ion-Bernstein-wave heating on the PLT tokamak plasmas have been investigated with up to 650 kW of rf power coupled to the plasma. A significant improvement in the deuterium particle confinement (as much as 300%) during high-power ion-Bernstein-wave heating has been observed. Associated with it, a longer injected-impurity-confinement time, reduced drift-wave turbulence activity, frequency shifts of drift-wave turbulence, and development of a large negative edge potential were observed. The ion heating efficiency, Ti(0)nePrf=6×1013 eV cm-3/kW, without high-energy tail ions, is relatively constant up to the maximum rf power.
Original language | English (US) |
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Pages (from-to) | 294-297 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 60 |
Issue number | 4 |
DOIs | |
State | Published - 1988 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy