1.5 MW RF Load for ITER

The ITER research reactor will require twenty four high power RF loads for gyrotrons, with the requirement eventually increasing to forty eight. The U.S. is responsible for providing these loads; however, none are available that meet the required specifications. Calabazas Creek Research Inc. proposes to develop 1.5 MW CW, RF loads meeting the ITER specifications. The development will build on technology successfully implemented in 1 MW loads that have been in operation for more than fifteen years. The new specifications will require an innovative configuration that dynamically distributes the RF power over RF absorbing surfaces without arcing or excessive power densities. The Phase I program will investigate techniques to dynamically distribute RF power inside a lossy, cylindrical structure to absorb 1.5 MW CW or RF power without arcing or thermal damage. Advanced simulation tools will be used to simulate the RF and thermomechanical performance. Assembly and bonding techniques, compatible with ITER requirements, will be developed. A control and diagnostic system will be developed. The estimated revenue for the first twenty four loads for ITER is more than $6M. This would more than double for the second phase. In addition, the loads would be applicable for other fusion research facilities in Japan, Europe, China, and the United States.