A PROPOSAL FOR AN ERL TEST FACILITY AT CERN

An energy recovery linac at 300-400 MeV is proposed as a test facility using a two-pass double cryomodule concept. This facility will be designed to serve as a validation and a test bench for the electron linac with energy recovery foreseen for the LHeC. Furthermore, the test facility can be used as the injector to the main linac in future. Some aspects of the ERL test facility and preliminary choices of the RF system are outlined.