Input coupler development for superconducting cavity 500 kW CW power feed

摘要

The coaxial-type input coupler for Energy Recovery Linac injector cavity simulation results are presented. Thisuddevice is to feed the superconducting cavity with 150 kW RF power in continuous wave regime at 1.3 GHz operatingudfrequency. The thermal simulation was done for the modified coupler able to transmit the RF power up toud500 kW. Different designs with heat load to injector cryogenic system lowered and external Q-factor adjustmentudwere considered.