Energy detector for the linac at ANU

The linac booster at ANU consists of superconducting Split Loop Resonators (SLRs). Each SLR needs to be individually tuned in phase and its amplitude set, for optimum acceleration efficiency. The superbuncher amplitude and phase also has to be correctly set to obtain the time focal length for the bunched beam. le method has been proposed to be used to tune the SLRs and the buncher. By observing the accelerated beam energy, the appropriate phase and amplitude can be determined. This will be done without using timing detectors or measuring magnetic rigidity. e energy detection, instead of using surface barrier detectors, two gas detectors have been designed, built and tested. This paper describes the tuning procedure, the detector details and the initial test measurements.