rf experiments on PLT

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:5551767

Hosea, J; Wilson, J R; Hooke, W; Ono, M; Mazzucato, E; Bell, R; Bernabei, S; Cavallo, A; Chu, T K; Cohen, S

A variety of rf experiments are being conducted on PLT in order to explore rf techniques which could improve tokamak performance parameters. Of special importance are the studies of ion Bernstein wave (IBW) heating, lower hybrid MHD stabilization and electron heating, down-shifted electron cyclotron heating, and fast wave current drive. Ion Bernstein wave heating results at modest power indicate that the particle confinement time could be enhanced relative to that for fast wave heating in the ion cyclotron range of frequencies (ICRF) and neutral beam heating. At these power levels a conclusive determination of energy confinement scaling with power cannot yet be given. Central sawtooth and m = 1 MHD stabilization is being obtained with centrally peaked lower hybrid (LH) current drive and the central electron temperature is peaking to values (approx.5 keV) well outside the bounds of ''profile consistency.'' In this case the electron energy confinement is apparently increased relative to the ohmic value. The production of relativistic electrons via heating at the down-shifted electron cyclotron (EC) frequency is found to be consistent with theoretical predictions and lends support to the use of this method for heating in relatively high magnetic field devices.

• Research Organization: Princeton Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5551767
• Report Number(s): CONF-860412-14; ON: DE86012856
• Resource Relation: Conference: 13. European conference on controlled fusion and plasma heating, Schliersee, F.R. Germany, 14 Apr 1986
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLT DEVICES
HIGH-FREQUENCY HEATING
BERNSTEIN MODE
CURRENT-DRIVE HEATING
ECR HEATING
STABILIZATION
ELECTRIC HEATING
HEATING
JOULE HEATING
OSCILLATION MODES
PLASMA HEATING
RESISTANCE HEATING
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production