Electron Cyclotron Radiation Transfer in Fusion Plasmas: Use of the ASTRA Transport Code Coupled with the CYTRAN Routine

Whereas Electron Cyclotron (EC) radiation losses are weak in present-day magnetically confined plasmas, these effects tend to become important for reactor-grade tokamaks in steady-state operation. For a satisfactory modelling of EC wave losses then the non-local properties of EC wave transport must be taken into account. Therefore the CYTRAN routine was coupled with the ASTRA transport code. The modelling performed for ITER-like parameters shows that EC wave emission is an important cooling mechanism for electrons in the plasma core when the peak temperature exceeds about 30 keV.