Performance of a conventional analog Φ - A type low-level RF controller

R. Nagai, R. Hajima, H. Iijima, N. Kikuzawa, E. Minehara, N. Nishimori, T. Nishitani, M. Sawamura

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    For a free-electron laser application and energy-recovery linac based light source, high-stability of accelerator RF amplitude and phase is required. A low-level RF controller of the JAEA-ERL has been improved to ensure high-stability accelerating RF field. The controller is a conventional analog Φ-A type controller. The controller performance is evaluated with a 499.8 MHz superconducting cavity and a 1300 MHz copper cavity. The phase and amplitude stabilities of the 499.8 MHz superconducting cavity within latter half of an RF pulse are 0.0055 deg-rms and 7.64×10-5, respectively. For the 1300 MHz copper cavity, the performance of pulse and CW modes are evaluated. In the case of pulse mode, the phase and amplitude stabilities are 0.011 deg-rms and 7.64×10-5, respectively. In the case of CW mode, the phase and amplitude stabilities are 0.011 deg-rms and 6.68×10-5, respectively. Therefore, the performance of the analog Φ-A type low-level RF controller is sufficient for a free-electron laser stable operation and an energy-recovery linac based light source.

    Original languageEnglish
    Pages316-318
    Number of pages3
    Publication statusPublished - 2006 Dec 1
    Event28th International Free Electron Laser Conference, FEL 2006 - Berlin, Germany
    Duration: 2006 Aug 272006 Sep 1

    Other

    Other28th International Free Electron Laser Conference, FEL 2006
    Country/TerritoryGermany
    CityBerlin
    Period06/8/2706/9/1

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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