A non-local synergism between electron cyclotron waves and lower hybrid waves induced by transport

作者：Rosa PRD^*; Ziebell LF

来源：Plasma Physics and Controlled Fusion, 2001, 43(11): 1485-1502.

DOI：10.1088/0741-3335/43/11/305

In this paper, we study the effects of particle radial transport on the electron cyclotron (EC) and lower hybrid (LH) power deposition profiles and current drive efficiency. We consider a tokamak plasma under the combined action of LH waves, EC waves, collisions and spatial transport of electrons across the magnetic surfaces, and consider situations in which the spatial location of the peaks of power deposition profiles for EC and LH waves is not the same. Our results, found from numerical solution of the diffusion equation, indicate significant modification in the LH power deposition profile and show evidence of a non-local synergism between LH and EC waves when transport is present, leading to strong enhancing of RF current drive efficiency.

• 出版日期2001-11