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Zhai J.

PaperTitlePage
WEP45The first processing of capacitive-coupling coupler at room temperature in a cryomodule at STF587
 
  • T. Saeki, H. Matsumoto, S. Kazakov, F. Furuta, K. Saito, Y. Higashi, T. Higo, H. Inoue, Y. Morozumi, M. Sato, H. Yamaoka
    KEK
  • J. Hong
    PAL
  • J. Zhai
    IHEP, CAS
 
 We are constructing Superconducting RF Test Facility (STF) at KEK for the R&D of ILC accelerator. In the beginning of year 2007, we installed one TESLA-like 9- cell cavity and one high-gradient Low-Loss (LL) type 9- cell cavity into cryomodules at STF. For the LL 9-cell cavity, an Capacitive-Coupling (CC) input-coupler, a ballscrew tuner and other peripherals were assembled with the cavity. The assembled cavity package was installed with thermal shields and so on into a cryomodule. After the installation, we performed the first processing of Capacitive-Coupling (CC) input-coupler in a cryomodule at the room-temperature. We achieved the power of 250 kW with the pulse-width of 1.5 msec at the repetition rate of 5 pps. This presentation describes about the assembly of a CC coupler and a high-gradient LL 9-cell cavity in a clean room and the processing of the CC coupler at the room temperature in a cryomodule.