Comparison of Alcator C data with the Rebut-Lallia-Watkins critical gradient scaling

Technical Report · Tue Dec 01 00:00:00 EST 1992

OSTI ID:6605111

Hutchinson, I H

The critical temperature gradient model of Rebut, Lallia and Watkins is compared with data from Alcator C. The predicted central electron temperature is derived from the model, and a simple analytic formula is given. It is found to be in quite good agreement with the observed temperatures on Alcator C under ohmic heating conditions. However, the thermal diffusivity postulated in the model for gradients that exceed the critical is not consistent with the observed electron heating by Lower Hybrid waves.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (United States). Plasma Fusion Center
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-78ET51013
• OSTI ID: 6605111
• Report Number(s): DOE/ET/51013-298; PFC/RR-92-15; ON: DE93010312
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALCATOR DEVICE
ELECTRON TEMPERATURE
ION TEMPERATURE
HIGH-FREQUENCY HEATING
MATHEMATICAL MODELS
SCALING LAWS
CLOSED PLASMA DEVICES
HEATING
PLASMA HEATING
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)