FABRICATION AND INSTALLATION OF SUPERCONDUCTING ACCELERATOR MODULES FOR THE ERL PROTOTYPE (ERLP) AT DARESBURY

Installation and commissioning of the superconducting energy recovery linac (ERL) prototype is under way at Daresbury Laboratory (1). ACCEL have manufactured two superconducting accelerator modules for the injector and the linac, operating at 2K with 1.3 GHz TESLA type cavities. Each module contains two cavities and is designed to provide an accelerating voltage of 25 MV in cw mode. This paper presents details of the module fabrication, cavity preparation and performance results. An overview of the cryogenic installations for the modules is given and status results of the commissioning are discussed.