Linear wave propagation in resistive/hot tokamak plasmasFunded under: FP3-FUSION 11C
Using the bicubic finite element codes CHEASE and PENN, Maxwell's equations are solved for global wavefields in a realistic tokamak equilibrium. Two different models have been implemented to calculate the linear response of the plasma. The first is a cold resistive model which gives results in good agreement with the cold toroidal code LION in the case of TAE mode computations. The second is a hot kinetic model, which is validated with the hot cylindrical code ISMENE, reproducing the mode conversion to a kinetic Alfvén wave in the large aspect ratio limit. Using the new tool for a preliminary study, self-consistent (non-perturbative) calculations of TAE mode wavefields show how finite Larmor radius effects can couple a gap mode to the kinetic Alfvén wave, resulting in a radiatively damped KTAE mode.
Bibliographic Reference: Article: Proceedings of Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Varenna (IT), August 22-26, 1994, pp. 369-377
Record Number: 199510150 / Last updated on: 1995-08-22
Original language: en
Available languages: en