Effects of high-power ion Bernstein waves on a tokamak plasma

Journal Article · Mon Jan 25 04:00:00 EST 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.294· OSTI ID:5601899

Ono, M; Beiersdorfer, P; Bell, R; Bernabei, S; Cavallo, A; Chmyga, A; Cohen, S; Colestock, P; Gammel, G; Greene, G J

Effects of high-power ion--Bernstein-wave heating on the PLT tokamak plasmas have been investigated with up to 650 Kw of rf power coupled to the plasma. A significant improvement in the deuterium particle confinement (as much as 300%) during high-power ion--Bernstein-wave heating has been observed. Associated with it, a longer injected-impurity--confinement time, reduced drift-wave turbulence activity, frequency shifts of drift-wave turbulence, and development of a large negative edge potential were observed. The ion heating efficiency, ..delta..T/sub i/(0)n-bar/sub e//P/sub r//sub f/ = 6 x 10/sup 13/ eV cm/sup -3//kW, withough high-energy tail ions, is relatively constant up to the maximum rf power.

• Research Organization: Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08544
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5601899
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 60:4; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
BERNSTEIN MODE
CONFINEMENT
DRIFT INSTABILITY
EFFICIENCY
HEATING
INSTABILITY
ION WAVES
OSCILLATION MODES
PLASMA CONFINEMENT
PLASMA HEATING
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA WAVES
PLT DEVICES
RF SYSTEMS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS