Plasma heating and current drive using intense, pulsed microwaves

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:6665533

Cohen, B I; Cohen, R H; Nevins, W M; Rognlien, T D; Bonoli, P T; Porkolab, M

The use of powerful new microwave sources, e.g., free-electron lasers and relativistic gyrotrons, provide unique opportunities for novel heating and current-drive schemes in the electron-cyclotron and lower-hybrid ranges of frequencies. These high-power, pulsed sources have a number of technical advantages over conventional, low-intensity sources; and their use can lead to improved current-drive efficiencies and better penetration into a reactor-grade plasma in specific cases. The Microwave Tokamak Experiment at Lawrence Livermore National Laboratory will provide a test for some of these new heating and current-drive schemes. This paper reports theoretical progress both in modeling absorption and current drive for intense pulses and in analyzing some of the possible complications that may arise, e.g., parametric instabilities and nonlinear self-focusing. 22 refs., 9 figs., 1 tab.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6665533
• Report Number(s): UCRL-99670; CONF-881124-1; ON: DE89001127; TRN: 88-038492
• Resource Relation: Conference: Joint Varenna-Lausanne workshop on theory of fusion plasmas, Chexbres, Switzerland, 3 Nov 1988; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TOKAMAK TYPE REACTORS
PLASMA HEATING
ECR HEATING
FREE ELECTRON LASERS
LANDAU DAMPING
LOWER HYBRID HEATING
PARAMETRIC INSTABILITIES
PHASE SPACE
PLASMA MICROINSTABILITIES
DAMPING
HEATING
HIGH-FREQUENCY HEATING
INSTABILITY
LASERS
MATHEMATICAL SPACE
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SPACE
THERMONUCLEAR REACTORS
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production