Non-relativistic response function for higher harmonic electron cyclotron resonance heating

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.872430· OSTI ID:526928

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

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

A response function [Y. Kiwamoto {ital et al.}, Phys. Plasmas {bold 1}, 834 (1994)] for higher harmonic cyclotron resonance heating is constructed through the analysis of electron trajectory under harmonic heating in an inhomogeneous magnetic field. General expressions of orbital displacement and energy gain for higher harmonic resonance are obtained. Phase-averaged energy gain of electrons by n-th harmonic electron cyclotron resonance heating (ECRH) is larger by a factor of n, if the effect of the orbital displacement from the unperturbed orbit is correctly included, than that evaluated based on an unperturbed orbit assuming small k{sub {perpendicular}}{rho}. The energy gain for finite k{sub {perpendicular}}{rho} is also obtained. These results are confirmed with a numerical calculation for second harmonics. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 526928
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 4; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ECR HEATING
HARMONICS
MAGNETIC FIELDS
ORBITS
RESONANCE
RESPONSE FUNCTIONS