Whistler mode electron cyclotron resonance heating and emission in a magnetic mirror plasma. (Volumes I and II)

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5678175

Booske, J H

Whistler mode electron cyclotron heating (ECRH) was performed simultaneously with whistler mode electron cyclotron emission measurements on an axisymmetric magnetic mirror plasma. Results presented include theoretical and experimental studies of the early plasma startup phase, as well as experimental studies of two instability phases. These instabilities are identified as a whistler instability and an MHD flute instability. Cyclotron emission spectra during the startup phase match that predicted for a sloshing electron type distribution base on radiation transport numerical modelling. This sloshing electron distribution was confirmed by independent Langmuir probe measurements. It is also in good agreement with anisotropic distributions resulting from ECRH as predicted by Fokker-Planck computer simulations. Experimentally measured heating rates show good agreement with a numerical simulation code based on rate equations and simplified analytical models of stochastic ECRH. Enhanced microwave emission at frequencies below the midplane electron-cyclotron frequency was correlated with enhanced electron endloss and radially outward hot electron motion during the whistler instability. Finally, contributions were made to the development of magnetic fusion energy technology.

• Research Organization: Michigan Univ., Ann Arbor (USA)
• OSTI ID: 5678175
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700107 -- Fusion Energy-- Plasma Research-- Instabilities
BREMSSTRAHLUNG
COMPUTERIZED SIMULATION
CYCLOTRON RADIATION
ECR HEATING
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
HEATING
HIGH-FREQUENCY HEATING
INSTABILITY
MAGNETIC MIRRORS
MICROWAVE RADIATION
NOISE
OPEN PLASMA DEVICES
PLASMA HEATING
PLASMA INSTABILITY
RADIATIONS
RADIO NOISE
RADIOWAVE RADIATION
SIMULATION
SPECTRA
THERMONUCLEAR DEVICES
WHISTLERS