Electron cyclotron resonance heating near the turning point in inhomogeneous magnetic field

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871600· OSTI ID:286952

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

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

Cyclotron resonance heating of electrons in a magnetic beach is studied by rigorous numerical analysis of the electron trajectories. It is confirmed that a heating response function [Y. Kiwamoto {ital et} {ital al}., Phys. Plasmas {bold 1} 834 (1994)] connecting the velocity distributions in both sides of the resonance layer can be applied over a wider range of electron velocities than originally expected. For electrons mirror-reflected close to the resonance layer, however, the electron velocity distribution after heating substantially deviates from the prediction of the response function. The deviation is quantitatively evaluated to obtain a criterion of applicability of the response function. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 286952
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ECR HEATING
LORENTZ FORCE
MAGNETIC MIRRORS
PLASMA SIMULATION
RESPONSE FUNCTIONS
RUNGE-KUTTA METHOD
TOKAMAK DEVICES