[Table of Contents]

Plasma and Fusion Research

Volume 5, S2094 (2010)

Regular Articles

Preliminary Simulation Study of Doppler Reflectometry
Yuta ISHII, Hitoshi HOJO, Atsushi MASE1), Masashi YOSHIKAWA, Makoto ICHIMURA, Yusuke HARAGUCHI and Tsuyoshi IMAI
Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
1)
Art, Science and Technology Center for Cooperative Research, Kyushu University, Kasuga 816-8580, Japan
(Received 10 December 2009 / Accepted 11 May 2010 / Published 10 December 2010)

Abstract

A preliminary simulation study of Doppler reflectometry is performed. The simulations solve Maxwell's equations by a finite difference time domain (FDTD) code method in two dimensions. A moving corrugated metal target is used as a plasma cutoff layer to study the basic features of Doppler reflectometry. We examined the effects of the full width at half maximum (FWHM) of the electromagnetic waves and the corrugation depth of the metal target. Furthermore, the effect of a nonuniform plasma is studied using this FDTD analysis. The Doppler shift and velocity are compared with those obtained from FDTD analysis of a uniform plasma.

Keywords

Doppler reflectometry, diagnostic simulation, FDTD code, plasma flow velocity

DOI: 10.1585/pfr.5.S2094

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This paper may be cited as follows:

Yuta ISHII, Hitoshi HOJO, Atsushi MASE, Masashi YOSHIKAWA, Makoto ICHIMURA, Yusuke HARAGUCHI and Tsuyoshi IMAI, Plasma Fusion Res. 5, S2094 (2010).