Abstract
Effects of the net toroidal plasma currents on magnetohydrodynamic (MHD) modes have been investigated in neutral beam heated plasmas with the control of ohmic current. The characteristics of experimental observations are discussed in comparison with the calculated 3-D equilibria. The resonant modes are destabilized by the change of magnetic configuration due to the induced current in the co-direction. The modes with m/n = 2/l and 3/2 abruptly disappear at the specific current, which is consistent with the disappearance of the resonant surfaces. The behavior of these modes is phenomenologically consistent with that of the interchange mode.
Original language | English |
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Pages (from-to) | L252-L255 |
Journal | Japanese journal of applied physics |
Volume | 34 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1995 Feb |
Externally published | Yes |
Keywords
- CHS
- Interchange mode
- MHD instability
- Magnetic fluctuation
- Ohmic heating current
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)