High-power ion-cyclotron heating on the levitated octupole

Conference · Mon Mar 01 04:00:00 EST 1982

OSTI ID:5225303

Dexter, R. N.; Fortgang, C. M.; Prager, S. C.; Sprott, J. C.; Strait, E. J.; Twichell, J. C.

Experiments are underway in the Wisconsin Levitated Toroidal Octupole to create hot, dense plasmas to facilitate the study of ..beta.. limits and related phenomena such as Pfirsch-Schlueter and bootstrap currents. The question of ballooning mode instability limits on ..beta.. = 8 ..pi..nk(T/sub i/+T/sub e/)/B/sup 2/ is of general importance for all toroidal systems, and ICRF heating should permit study of high ..beta.. plasmas with lower collisionality and smaller gyroradii than those of the high ..beta.. gun-injected plasmas currently under study in the Octupole. To these ends we are developing sources capable of delivering 4 MW to the plasma (1.5 MW coupled to the plasma to date, the rest under development).

• Research Organization: Wisconsin Univ., Madison (USA)
• DOE Contract Number: AS02-76ET53051
• OSTI ID: 5225303
• Report Number(s): DOE/ET/53051-30; CONF-820345-7; ON: DE82013286
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
ANNULAR SPACE
BALLOONING INSTABILITY
BETA RATIO
CLOSED CONFIGURATIONS
CONFIGURATION
HEATING
HIGH-FREQUENCY HEATING
ICR HEATING
INSTABILITY
LEVITATION
MAGNETIC FIELD CONFIGURATIONS
MULTIPOLAR CONFIGURATIONS
OCTUPOLAR CONFIGURATIONS
PLASMA HEATING
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SPACE
TOROIDAL CONFIGURATION