Different types of sawtooth oscillations in T-10 tokamak plasmas (a = 0.3 m, R0 = 1.5 m) have been studied with a two-dimensional soft X-ray tomographic reconstruction method. The analysis of the experimental data indicates that a variety of mechanisms of the sawtooth crash can be realized in T-10. The realization of the mechanisms depends on the electron temperature profile (current density profile) in the central region of the plasma.

Tangential x-ray imaging system for analysis of the small-scale modes in the T-10 tokamak Rev.