抄録
A new algorithm for 2-D ion temperature measurement was developed by including to the Gaussian-fitting process of Doppler broadened spectrum line in tomography reconstruction. A modified Bessel function model and squared cosine function model were used to satisfy both of annular boundary conditions in space and gaussian profile of spectrum line in wavelength. This method was found much more robust against projection signal errors than the conventional Gaussian-fitting method at each wavelength.
