Tomographic determination of plasma velocity with the use of ion Doppler spectroscopy
High Temperature Plasma Center, University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku,
Tokyo 113-8656, Japan
Revised: 25 July 2001
Published online: 15 December 2001
An inversion method for ion Doppler shift of spectrum lines was developed for plasma velocity measurements. By reducing the problem to the vectorial Radon transform, the characteristics of plasma ion velocity distribution such as vector potential/vorticity and velocity components were computed in two-dimensional space. Computer simulation of the reconstruction of different vector potential (vector field) models gives evidence that the reconstruction errors are acceptable, and the method can surely be used for real experimental data.
PACS: 07.05.Tp – Computer modeling and simulation / 02.60.Cb – Numerical simulation; solution of equations / 52.70.Kz – Optical (ultraviolet, visible, infrared) measurements
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001