Outgassing of plasma facing antenna front for lower hybrid wave launcher

摘要

A 3.7 GHz mock-up antenna module using carbon fiber composite (CFC) was fabricated and tested for the development of a heat-resistive front of the lower hybrid current drive (LHCD) antenna. This module has four waveguides and a water cooling channel, the length is 206 mm. The CFC surface was coated with a thin titanium later and was plated with copper in order to reduce RF losses, to bone rods and septum plates and to assemble them with cooling channel.