Some novel features of the ordinary-mode electron-cyclotron resonance heating of tokamak plasmas

Technical Report · Tue Mar 01 00:00:00 EST 1983

DOI:https://doi.org/10.2172/6181295· OSTI ID:6181295

Arunasalam, V; Efthimion, P C; Hosea, J C; Hsuan, H; Taylor, G

It is shown that the finite k/sub parallel/ linear theory of absorption predicts: first, that the Doppler effect splits the k/sub parallel/ = o resonance into two closely spaced resonances instead of the usual Gaussian broadening; and second, that although the total absorption is due to the finite size of the electron Larmor orbits, it is mainly determined by T/sub parallel/ and is only weakly dependent on T/sub perpendicular/ via cyclotron overstability type terms. Some consequences of these unique features on plasma heating and rf current drive are also examined.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6181295
• Report Number(s): PPPL-1986; ON: DE83008972; TRN: 83-010933
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CURRENT-DRIVE HEATING
ECR HEATING
TOKAMAK DEVICES
ABSORPTION
DOPPLER EFFECT
LARMOR RADIUS
CLOSED PLASMA DEVICES
ELECTRIC HEATING
HEATING
HIGH-FREQUENCY HEATING
JOULE HEATING
PLASMA HEATING
RESISTANCE HEATING
THERMONUCLEAR DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production