Development of a 500-KV photo-cathodedc gun for the erl light sources in Japan

N. Nishimori, R. Nagai, H. Iijima, R. Hajima, M. Yamamoto, T. Muto, Y. Honda, T. Miyajima, M. Kuriki, M. Kuwahara, S. Okumi, T. Nakanishi

    研究成果: Paper査読

    5 被引用数 (Scopus)

    抄録

    Energy recovery linac (ERL) based next generation light source such as X-ray FEL requires high brightness electron gun. We have developed a 500-kV, 10-mA photocath-ode DC gun. A segmented ceramic insulator with guard rings is employed to improve stability and robustness at high voltage operation by keeping field emission electrons away from the ceramic surface. A Cockcroft-Walton power supply and the insulator are installed in a SF6 tank and high voltage test up to 550kV was successfully done without a metal rod which supports a cathode electrode. All the vacuum chambers are made of chemically polished titanium alloy with very low out-gassing. A GaAs photocathode is activated in a separate preparation system. Up-to-date status of the gun development will be presented in detail.

    本文言語English
    ページ277-280
    ページ数4
    出版ステータスPublished - 2009 12月 1
    イベント31st International Free Electron Laser Conference, FEL 2009 - Liverpool, United Kingdom
    継続期間: 2009 8月 232009 8月 28

    Other

    Other31st International Free Electron Laser Conference, FEL 2009
    国/地域United Kingdom
    CityLiverpool
    Period09/8/2309/8/28

    ASJC Scopus subject areas

    • 核物理学および高エネルギー物理学

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