DESIGN AND FABRICATION OF AN 805 MHZ RF CAVITY WITH BE WINDOWS FOR AH IGH RF POWER TESTING FOR AM UON COOLING

We report the design and fabrication of an 805 MHz RF cavity with beryllium (Be) windows for a muon cooling experiment. The cavity resembles closely to a cylindrical pillbox cavity with the conventional beam iris covered by thin Be foils to enhance on-axis accelerating fields. The Be windows are bolted to the cavity body to allow for easy replacement and testing for different windows. The cavity is to be installed within a super-conducting solenoid with magnetic field up to 5T esla, and tested at high RF power.