Plasma confinement characteristics and runaway instability in the Proto-Cleo Torsatron

Thesis/Dissertation · Fri Jan 01 00:00:00 EST 1982

OSTI ID:5884220

Talmadge, J N

The role of the internal separatrix in plasma confinement and the properties of a runaway-modified discharge were studied in the Proto-Cleo torsatron. Two-dimensional profiles of plasma current and density revealed peaking of these quantities off the midplane and allowed for comparisons to analytical and numerical calculations. An investigation of the poloidal distribution of particles in the divertor region concluded that the flux peaks at the apices of the external separatrix, in agreement with numerical calculations. Experimental estimates of the magnitude of runaway current and the relaxation time of a runaway instability were found to be in reasonable agreement with theoretical predictions. Electron temperature increases on the order of 50% were observed due to the instability.

• Research Organization: Wisconsin Univ., Madison (USA)
• OSTI ID: 5884220
• Resource Relation: Other Information: Thesis (Ph. D.)
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PROTO-CLEO STELLARATORS
PLASMA CONFINEMENT
PLASMA INSTABILITY
DIVERTORS
ELECTRON TEMPERATURE
CLOSED PLASMA DEVICES
CONFINEMENT
INSTABILITY
STELLARATORS
THERMONUCLEAR DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production
700107 - Fusion Energy- Plasma Research- Instabilities