Progress On The Design Of A Demo High Power Icrh Travelling Wave Antenna Mock-Up To Be Tested On West

WEST represents the ideal device to test a reactor relevant TWA due to its long pulse capability and full metal wall configuration. Moreover, the already installed ICRF high power launchers will allow a direct comparison between a classical in-port antenna and the TWA. This paper reports the progress in the design of an actively cooled high power mock-up of the WEST TWA antenna that will be tested in the TITAN facility. The main objective of the test is to assess the voltage stand-off of the antenna at a power level relevant for future operation. In order to be installed and operated in WEST, the antenna design has to comply with the specific machine requirements, in particular active cooling, magnetic configuration and interface with existing auxiliary heating systems. Here several aspects are taken into account: toroidal magnetic field ripple, field line inter-connection and thermal loads on the antenna. An initial assessment of mechanical compatibility in case of VDE is performed. In conclusion, the next steps and implications of the project are outlined.