Abstract

The loss parameters of the ducts in the Photon Factory (PF) storage ring were evaluated using the wire method and the code tbci. Both the measurement and the calculation were done for different bunch length σ ranging from 25 to 80 ps. The ring impedance was estimated to be ‖Z/n‖=3.19 Ω using the broadband impedance model. The measurements in frequency domain were also carried out to investigate the resonances of some duct components such as the gate valves without rf shield and the flange gaps. The results are presented.

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