Ｅxperimental research of couple matching influence on HIRFL RF cavity voltage

Under the condition of the same RF power input from the RF transmitter, the amplitude of the RF cavity accelerating voltage depends not only on the quality factor of RF cavity, but also on the coupler matching performance of the RF cavity. This paper describes the experimental results of HIRFL SSC RF cavity accelerating voltage, which is enhanced by improvement of the matching condition of the power fed-in coupler.