Localized Electron Heating Experiments by Ion Bernstein Wave in the TNT–A Tokamak

Abstract

Plasma heating by ion Bernstein wave in the range of 2ω_D\lesssimω\lesssim3ω_D is investigated in deuterium dominant plasma of the TNT–A tokamak. The localized electron heating is observed at the harmonic (3ω_D) and subharmonic (2.5ω_D) resonance layers, while the electron heating on the whole plasma region is observed at ω=2ω_D. It is also shown that the heating is efficient and heating layer is localized by ion Bernstein wave in comparison with fast magnetosonic wave.