STUDY OF ELECTRON CYCLOTRON ABSORPTION IN TOKAMAK PLASMA USING KINETIC MODEL

Abstract

Electron-cyclotron (EC) absorption in tokamak plasma. is based on interaction between wave and electron cyclotron movement when the electron passes through a layer of resonance at a fixed frequency and dependent magnetic field. This technique is the principle of additional heating (ECRH) and the generation of non-inductive current drive (ECCD) in modern fusion devices. In this paper we are interested by the problem of EC absorption which used a microscopic description of kinetic theory treatment versus the propagation which using the cold plasma description. The power absorbed depends on the optical depth which in turn depends on coefficient of absorption and the order of the excited harmonic for O-mode or X-mode.