Formation of high-Beta plasmas in various modes of operation in TPE-2
Abstract
Confinement and stability properties of high-beta plasmas in a toroidal screw pinch machine with an elliptic minor cross-section and a small aspect ratio is discussed. Plasma diagnostics and data analysis, and results obtained in the usual mode of operation are discussed. Results of the matched screw-pinch mode are presented. In this mode, the bias field and predischarge current are combined with the power-crowbar circuits in such a way that Bt and Ip increase almost simultaneously to their maximum values in 0.5 msec at a nearly constant value of qI at the wall. For both modes, the time evolution of a typical discharge is shown.
- Publication:
-
14th European Conference on Controlled Fusion and Plasma Physics
- Pub Date:
- August 1987
- Bibcode:
- 1987cfpp.conf....9O
- Keywords:
-
- Beta Factor;
- Magnetohydrodynamic Stability;
- Plasma Control;
- Screw Pinch;
- Plasma Currents;
- Plasma Diagnostics;
- Q Factors;
- Plasma Physics