关键词: O-模加热, 有效吸收层厚度, 功率沉积剖面

Abstract:

With the single-null divertor configuration on the HL-2A tokamak, the ray tracing and the wave power deposit for the ordinary electron cyclotron wave, perpendicularly injected from the weak field side, are analyzed. For on-axis resonance, it is necessary to determine a physical scale length to treat adequately the wave power deposit profile. The effective absorption layer of a single ray can be used as such physical scale length to obtain a formula for the wave power deposit. As examples, results of wave power deposit profiles for on-axis heating are reported for both cases of the magnetic axis locate on and depart from the equatorial plane.

Key words: Ordinary mode heating, Effective thickness of absorption layer, Wave power deposit profile