Physics evaluation of compact tokamak ignition experiments
At present, several approaches for compact, high-field tokamak ignition experiments are being considered. A comprehensive method for analyzing the potential physics operating regimes and plasma performance characteristics of such ignition experiments with O-D (analytic) and 1-1/2-D (WHIST) transport models is presented. The results from both calculations are in agreement and show that there are regimes in parameter space in which a class of small (R/sub o/ approx. 1-2 m), high-field (B/sub o/ approx. 8-13 T) tokamaks with aB/sub o/S/q/sub */ approx. 25 +- 5 and kappa = b/a approx. 1.6-2.0 appears ignitable for a reasonable range of transport assumptions. Considering both the density and beta limits, an evaluation of the performance is presented for various forms of chi/sub e/ and chi/sub i/, including degradation at high power and sawtooth activity. The prospects of ohmic ignition are also examined. 16 refs., 13 figs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6276291
- Report Number(s):
- CONF-851102-49; ON: DE86003806
- Resource Relation:
- Conference: 11. symposium on engineering problems in fusion research, Austin, TX, USA, 18 Nov 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
THERMONUCLEAR IGNITION
PLASMA SIMULATION
TOKAMAK DEVICES
ELECTRIC CONDUCTIVITY
PLASMA CONFINEMENT
STEADY-STATE CONDITIONS
THERMAL DIFFUSION
CLOSED PLASMA DEVICES
CONFINEMENT
DIFFUSION
ELECTRICAL PROPERTIES
PHYSICAL PROPERTIES
SIMULATION
THERMONUCLEAR DEVICES
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)