Theoretical study of microwave heating in ELMO bumpy torus

Conference · Sun Jan 01 00:00:00 EST 1978

OSTI ID:6677300

Batchelor, D B; Kritz, A N; Goldfinger, R C

Because the plasma in ELMO Bumpy Torus (EBT) is produced and heated by microwaves, and macrostability is dependent on microwaves through the formation of the annuli, an understanding of microwave propagation and energy deposition is a crucial element in EBT theory. A central feature of the microwave heating study is the development of a ray-tracing code capable of operating with a wide variety of three-dimensional (3-D) plasma equilibrium configurations. Results are presented for plasma parameters characteristic of EBT-I and projected parameters characteristic of EBT-II. In EBT-I the extraordinary mode is very heavily damped, and the ordinary mode is weakly damped. The ordinary mode may, however, play an important role in the heating of EBT-I through mode conversion. In EBT-II the ordinary mode should be strongly damped. The code is being improved to include finite temperature effects on the ray paths and absorption at second and higher harmonic resonances.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6677300
• Report Number(s): CONF-780705-2; TRN: 78-016919
• Resource Relation: Conference: Conference on controlled fusion and plasma physics, Grenoble, France, 3 Jul 1978
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ECR HEATING
ELMO BUMPY TORUS
COMPUTER CODES
HIGH-FREQUENCY HEATING
MICROWAVE RADIATION
PLASMA MACROINSTABILITIES
THREE-DIMENSIONAL CALCULATIONS
ELECTROMAGNETIC RADIATION
ELMO DEVICES
HEATING
INSTABILITY
MAGNETIC MIRRORS
OPEN PLASMA DEVICES
PLASMA HEATING
PLASMA INSTABILITY
RADIATIONS
THERMONUCLEAR DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production