Modeling of a tokamak antenna module with VORPAL

We present electromagnetic simulation results of tokamak RF antennas using a large-scale 3D finite-difference time-domain software package, VORPAL. The geometry of the module is constructed by a combination of parametric representations and importing CAD data. The antenna is driven by a source in 2 coaxial feeds and the plasma equilibrium magnetic field is imported from an EQdisk file. Summary form only given. The module is simulated in both a cold-test as well as in the vicinity of a representative edge plasma. The simulation volume is pushed as large as possible for office-cluster scale and super-computing scale platforms to explore the feasibility of extending the computation domain to include more modules and longer time scales.