Production of a fat plasma in a reversed-field configuration of high efficiency
Abstract
The heating mechanism in the production of a fat (separatrix/tube wall radius ratio of approximately 1), hot (600-200 eV) plasma in a theta pinch with a reversed-field configuration is investigated. The plasma was produced in a large-diameter theta pinch by a relatively low confining field (0.3 T) with an efficiency of about 0.3, and plasma density and magnetic field profiles were monitored. Comparison of experimental results indicating the formation of the fat, hot plasma with numerical calculations based on the snowplow model reveal that it is the delayed pinch effect, which allows increased energy input to the plasma and trapped magnetic field, in combination with Joule heating due to anomalous plasma resistivity which enable the generation of such a plasma.
- Publication:
-
Nuclear Fusion
- Pub Date:
- September 1980
- Bibcode:
- 1980NucFu..20.1173S
- Keywords:
-
- Energy Conversion Efficiency;
- High Temperature Plasmas;
- Magnetic Field Configurations;
- Plasma Heating;
- Reverse Field Pinch;
- Theta Pinch;
- Controlled Fusion;
- Energy Technology;
- Plasma Control;
- Plasma Density;
- Plasma Dynamics;
- Reactor Design;
- Resistance Heating;
- Plasma Physics