Electron cyclotron resonance heating by strong monochromatic wave in nonuniform magnetic field

Journal Article · Fri Apr 01 04:00:00 EST 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870742· OSTI ID:6922428

Kiwamoto, Y; Saito, T; Tatematsu, Y; Katanuma, I; Yoshimura, Y; Tamano, T ^[1]

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1. Plasma Research Center, University of Tsukuba, Tsukuba-shi Ibaraki-ken 305 (Japan)

Numerical studies are made on dynamics of electrons under electron cyclotron resonance heating (ECRH) by a strong monochromatic wave in a nonuniform magnetic field. The response of the electrons is described in terms of gains in energy and magnetic moment. These expressions are employed to define a response function which connects the velocity distributions of electrons before and after heating in a wide range of conditions. The response function is applied to calculate the velocity distribution of cold electrons which stream up the magnetic slope and are heated at the resonance. This configuration simulates a possible scheme for controlling an inward flux of cold electrons in diverter regions of tori and in mirror ends by mirror reflection enhanced by ECRH. The velocity distribution shows wing-like structures which are not expected from diffusion equations.

• OSTI ID: 6922428
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:4; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700330 -- Plasma Kinetics
Transport
& Impurities-- (1992-)
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
700380 -- Elementary & Classical Processes in Plasmas-- (1992-)
CYCLOTRON RESONANCE
DIFFUSION
ELECTROMAGNETIC RADIATION
ELECTRON CYCLOTRON-RESONANCE
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
FUNCTIONS
HEATING
LEPTONS
MAGNETIC MIRRORS
MAGNETIC MOMENTS
MONOCHROMATIC RADIATION
OPEN PLASMA DEVICES
PLASMA HEATING
PLASMA SIMULATION
RADIATIONS
RESONANCE
RESPONSE FUNCTIONS
SIMULATION
THERMONUCLEAR DEVICES
TRANSPORT THEORY