TRANSVERSE IMPEDANCE MEASUREMENT OF INDUCTION ACCELERATING CAVITY
Transverse impedances can be derived from transmission coefficients measured along one of the two coaxial wires driven by a 180 hybrid. Our results show that the newly designed cavities behave better than the old prototype cavity with larger transverse impedance,and between the newly designed cavities,dielectric cavity with a coxial like accelerating gap geometry should be the first choice because the transverse impedance of the lower mode is oppressed efficiently.