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.