Abstract
A full‐wave code for the wave propagation studies in the Alfven and the ion‐cyclotron frequency domain in 3D plasmas is presented. In addition to the cold model, a warm plasma model where kinetic effects are taken into account in the limit of small Larmor radius has also been implemented. Due to the Fourier discretization in the poloidal and the toroidal directions the parallel wave vector expression is relatively simple. However, the exact computation of k∥ in 2D and 3D configurations is complicated because of the dependence on both the spatial position and the (m,n) mode numbers considered. A comparison with the 2D PENN code is presented where we use different approximations for the value of the parallel wave vector. Parallelisation and optimisation of the cold plasma version of the LEMan code is also discussed. Due to improved matrix construction and storage algorithms, the memory requirements are considerably reduced which allows for calculations in the IC frequency range in the stellarator geometry.
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