1. |
- Askinazi, L. G., et al.
(author)
-
Evolution of geodesic acoustic mode in ohmic H-mode in TUMAN-3M tokamak
- 2012
-
In: Technical physics letters. - 1063-7850 .- 1090-6533. ; 38:3, s. 268-271
-
Journal article (peer-reviewed)abstract
- The behavior of a geodesic acoustic mode (GAM) in the TUMAN-3M tokamak has been experimentally studied using the heavy-ion beam probing technique. Oscillations of the electric potential under the action of a GAM localized at the plasma periphery have been detected. The GAM was observed in the regime of low confinement (L-mode) with low plasma density (similar to 0.8 x 10(19) m(-3)) and disappeared upon the transition to a high confinement regime (H-mode). The possible role of GAM as a precursor of the improved confinement (LH-transition) is discussed.
|
|