Finite temperature effects on microwave propagation in EBT

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:6246248

Batchelor, D. B.; Goldfinger, R. C.

A three dimensional ray tracing code, RAYS, has been developed as a part of the ongoing theoretical study of microwave heating in the Elmo Bumpy Torus device. Recently this code has been improved to include the effects of finite temperature on the ray paths as well as cyclotron damping. Our dispersion relation allows us to study effects at the second and higher harmonic resonances. In particular, we observe conversion of the extraordinary mode to electrostatic Bernstein waves at the upper hybrid resonancee and second harmonic resonance. Total absorption rates are given for ordinary and extraordinary mode waves at first and second harmonic resonances for plasma parameters appropriate for EBT-I and projected parameters for EBT-II. We have investigated the influence which the choice of tion for the imaginary part of the refractive index has upon total absorption. It was found that when the absorption is weak, the total absorption is virtually independent of the direction of k/sub i/.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: USDOE Office of Fusion Energy
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6246248
• Report Number(s): CONF-790469--2
• Country of Publication: United States
• Language: English

Related Subjects

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