A NEW HALF-WAVE RESONATOR CRYOMODULE DESIGN FOR PROJECT-X

We present the current status of our Project-X halfwave resonator cryomodule development effort. The Project-X injector requires a single cryomodule with 8 superconducting 162.5 MHz β = 0.112 half-wave resonators interleaved with 8 integrated superconducting solenoid/steering coils. This cryomodule is being designed and built by ANL with the intent of delivering a device which has all external connections to the cryogenic, RF, and instrumentation systems located at removable junctions separated from the clean cavity vacuum system. Issues include the ease of assembly, cavity cleanliness, interfacing to subsystems (e.g., cryogenics, couplers, tuners, etc), and satisfying the ANL/FNAL/DOE guidelines for vacuum vessels. We employ proven warm-to-cold low-particulate beam line transitions to minimize unused space along the linac, a top loading box design that minimizes the size of the cleanroom assembly, and compact beam-line devices to minimize the length of the focusing period.