Self-consistent modelling of radio frequency sheath in 3D with realistic ICRF antennas
Ion cyclotron resonant frequency (ICRF) induced impurity production has raised many concerns since ITER proposed to change the first wall material from beryllium to tungsten.Enhanced DC plasma potential ( V _DC ) due to radio frequency (RF) sheath rectification is well known as one of the most important mechanisms behind the RF induced impurities.O