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One-Dimensional Analysis of Polarization Reversal Relating to Electron Cyclotron Resonance

K. Takahashi, A. Fukuyama, T. Kaneko, R. Hatakeyama (19P36)

Fusion Science and Technology / Volume 51 / Number 2T / February 2007 / Pages 313-315

Technical Paper / Open Magnetic Systems for Plasma Confinement /

A polarization reversal of an electromagnetic wave relating to electron cyclotron resonance in an inhomogeneously magnetized plasma-filled waveguide is investigated by using a one-dimensional code of full wave analysis with cold plasma approximation, and its results are compared with the experimentally observed polarization reversal, which has already been reported [Phys. Rev. Lett., 94, 215001 (2005)]. It is found that the polarization reversal can be reproduced by this code and its results are in good agreement with the experimental ones. The polarization-reversal position is affected by a wavenumber perpendicular to the magnetic-field lines, which is determined by the radial boundary condition between the plasma column and the peripheral vacuum layer in our experiments.

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