3D full wave simulations for the ITER ICRF antenna*

ITER will be equipped with two identical ion cyclotron radiofrequency (ICRF) antennas to deliver 20 MW to the plasma (baseline, upgradable to 40 MW). ICRF will play a crucial role in the ignition and sustainment of burning plasmas in ITER. The assessment of the ICRH antenna loading for different ITER plasma scenarios is conducted by employing the Petra-M code, which is a finite element method analysis framework capable to consider the 3D antenna geometry and SOL region. Furthermore, a code comparison with the antenna codes TOPICA and RAPLICASOL (which is based on COMSOL) is also presented showing an excellent agreement in terms of Sand Z-matrices and wave electric field in front of the antenna. Finally, an evaluation of the RF sheath voltage on the ITER ICRH antenna side limiters based on a recent numerical scheme implemented in Petra-M will be also discussed.