Simulations of Tore Supra and JET FWCD scenario experiments and ITER 2ωc(T)heating scenario with different ICRF codes. Influence of the plasma-ICRF antenna distance

A fast code of ICRF power deposition is in development at Tore Supra (ABSOR code) using the knowledge provided by existing codes (SINGLE, VICE, and ALCYON). The results of these codes are compared on different tokamaks. As the whole toroidal spectrum is considered, cavity modes appear with full wave codes on TS and JET Fast Wave Current Drive scenario plasmas. The cavity mode effect disappears for strong single pass absorption of the different species, in particular in ITER plasmas in 2ωc(T) heating scenario. It is then possible in this case to provide the dependence of the coupled power in function of the plasma-ICRF antenna distance with 1D full wave code and to validate the ABSOR calculations. Experimental study of coupled power in function the plasma-ICRF antenna distance in Tore Supra FWEH experiments is given and a good agreement is found with the ABSOR simulation. The power partitioning and the radial deposition profiles taking into account the whole toroidal spectrum are provided.