1.5 MW CW RF Loads for Gyrotrons

A new series of MW-class, RF loads were developed that can dissipate power levels exceeding 1.5 MW at frequencies from 28 GHz to 180 GHz. The new loads are designed to reflect less than 0.25% of the input power and operate continuously (CW). Stainless-steel and anodized aluminum versions were developed. The stainless steel version is designed to meet requirements for nuclear facilities, such as ITER, while the aluminum version is capable of power levels exceeding 2 MW CW. The aluminum version is also lighter and less expensive. This paper describes the design and capabilities of the loads.

Automated summary

This paper presents a new series of MW-class RF loads that can dissipate power levels exceeding 1.5 MW at frequencies from 28 GHz to 180 GHz. The loads are designed to reflect less than 0.25% of the input power and operate continuously (CW). Stainless-steel and anodized aluminum versions were developed, with the stainless steel version meeting requirements for nuclear facilities and the aluminum version capable of power levels exceeding 2 MW CW, while also being lighter and less expensive.