Millimeter Wave, 1 MW, CW Water Load

A high-power load capable of dissipating 1 MW at 170 GHz is proposed for full-power testing of ITER gyrotrons. The load, consisted of non-moving elements only, was designed with features which allow compact sizes and shorten required set-up time. The load consists of water pumped vessel, separated from vacuum by diamond disk, and a set of dielectric plates which provides distributed absorption of millimeter wave radiation propagating in it.