Eur. Phys. J. D 27, 125-130 (2003)
https://doi.org/10.1140/epjd/e2003-00232-4

Radial velocity profile reconstruction by Doppler spectroscopy measurements

High Temperature Plasma Center, University of Tokyo, 2–11–16 Yayoi, Bunkyo–ku, Tokyo 113–8656, Japan

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Received: 16 October 2002
Revised: 24 January 2003
Published online: 29 July 2003

Abstract

An inversion method for plasma velocity determination was developed under the assumption of axial symmetry of plasmas. The specific right-hand side of equation (9) allows one to use experimental data without the need of differentiation which causes substantial reconstruction errors. The problem was formulated in the vorticity approach, and then Helmholtz's decomposition theorem for vector fields was used. Numerical simulation results for the algorithm verification, and real experimental data were applied for determination of radial velocity distribution.