Abstract

A radio-frequency (RF) resonant ring test bench has been developed at Peking University for testing and conditioning the power couplers of the 1.3 GHz superconducting radio-frequency accelerator. To maintain the resonant condition of the resonant ring under external disturbance, the Pound-Drever-Hall (PDH) technique has been adopted for frequency locking between the ring and the power source. This paper introduces the application of PDH technique in the RF resonant ring and presents the experiment results showing the effectiveness of the frequency locking against external disturbance.

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