Preliminary analysis of the ICRF launcher for DTT

The paper reports the preliminary analysis of different typologies of ICRH launchers for chosing the most efficient solution for the ICRH system of the Divertor Tokamak Test facility (DTT), designed by the Italian DTT Limited Liability Consortium (S.C. a r.l.). In its final configuration this system will couple to the DTT plasma a nominal power of 6 MW in the 60 - 90 MHz frequency range by means of four launchers. This very preliminary analysis has been done with the ANSYS HFSS code.