Numerical evaluation of oscillator fel with multi-bunch photo-cathode RF-gun in Kyoto university

Hideaki Ohgaki, Toshiteru Kii, Kai Masuda, Satoshi Sasaki, Takumi Shiiyama, Heishun Zen, Ryunosuke Kuroda, Masao Kuriki, Nobuhiro Terunuma, Junji Urakawa, Yoshio Kamiya, Masakazu Washio

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    Numerical evaluations have been performed to install a photo-cathode RF-gun into an oscillator FEL system which has been developed in Kyoto University. The original FEL system was consisted of a 4.5-cell thermionic RF gun with S-band accelerator tube of 3-m to oscillate the mid-infrared FEL. The electron beam properties have been evaluated from an RF-gun to an FEL by using PARMELA and ELEGANT. On the other hand, the FEL parameters have been calculated with GENESIS which takes the optical cavity into account. The evaluated peak current of the electron beam was 10-50 times as high as those with the thermionic RF-gun. Since the oscillator FEL requires a multi-bunch electron beam, evaluation of the round-trip development of the FEL has been also performed by a 100 bunch train beam. The results showed that the FEL gain saturation was achieved within 3 round-trips.

    Original languageEnglish
    Title of host publication29th International Free Electron Laser Conference, FEL 2007
    Pages390-393
    Number of pages4
    Publication statusPublished - 2007
    Event29th International Free Electron Laser Conference, FEL 2007 - Novosibirsk
    Duration: 2007 Aug 262007 Aug 31

    Other

    Other29th International Free Electron Laser Conference, FEL 2007
    CityNovosibirsk
    Period07/8/2607/8/31

    Fingerprint

    cathodes
    oscillators
    thermionics
    evaluation
    electron beams
    S band
    accelerators
    tubes
    saturation
    cavities
    cells

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Ohgaki, H., Kii, T., Masuda, K., Sasaki, S., Shiiyama, T., Zen, H., ... Washio, M. (2007). Numerical evaluation of oscillator fel with multi-bunch photo-cathode RF-gun in Kyoto university. In 29th International Free Electron Laser Conference, FEL 2007 (pp. 390-393)

    Numerical evaluation of oscillator fel with multi-bunch photo-cathode RF-gun in Kyoto university. / Ohgaki, Hideaki; Kii, Toshiteru; Masuda, Kai; Sasaki, Satoshi; Shiiyama, Takumi; Zen, Heishun; Kuroda, Ryunosuke; Kuriki, Masao; Terunuma, Nobuhiro; Urakawa, Junji; Kamiya, Yoshio; Washio, Masakazu.

    29th International Free Electron Laser Conference, FEL 2007. 2007. p. 390-393.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Ohgaki, H, Kii, T, Masuda, K, Sasaki, S, Shiiyama, T, Zen, H, Kuroda, R, Kuriki, M, Terunuma, N, Urakawa, J, Kamiya, Y & Washio, M 2007, Numerical evaluation of oscillator fel with multi-bunch photo-cathode RF-gun in Kyoto university. in 29th International Free Electron Laser Conference, FEL 2007. pp. 390-393, 29th International Free Electron Laser Conference, FEL 2007, Novosibirsk, 07/8/26.
    Ohgaki H, Kii T, Masuda K, Sasaki S, Shiiyama T, Zen H et al. Numerical evaluation of oscillator fel with multi-bunch photo-cathode RF-gun in Kyoto university. In 29th International Free Electron Laser Conference, FEL 2007. 2007. p. 390-393
    Ohgaki, Hideaki ; Kii, Toshiteru ; Masuda, Kai ; Sasaki, Satoshi ; Shiiyama, Takumi ; Zen, Heishun ; Kuroda, Ryunosuke ; Kuriki, Masao ; Terunuma, Nobuhiro ; Urakawa, Junji ; Kamiya, Yoshio ; Washio, Masakazu. / Numerical evaluation of oscillator fel with multi-bunch photo-cathode RF-gun in Kyoto university. 29th International Free Electron Laser Conference, FEL 2007. 2007. pp. 390-393
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    abstract = "Numerical evaluations have been performed to install a photo-cathode RF-gun into an oscillator FEL system which has been developed in Kyoto University. The original FEL system was consisted of a 4.5-cell thermionic RF gun with S-band accelerator tube of 3-m to oscillate the mid-infrared FEL. The electron beam properties have been evaluated from an RF-gun to an FEL by using PARMELA and ELEGANT. On the other hand, the FEL parameters have been calculated with GENESIS which takes the optical cavity into account. The evaluated peak current of the electron beam was 10-50 times as high as those with the thermionic RF-gun. Since the oscillator FEL requires a multi-bunch electron beam, evaluation of the round-trip development of the FEL has been also performed by a 100 bunch train beam. The results showed that the FEL gain saturation was achieved within 3 round-trips.",
    author = "Hideaki Ohgaki and Toshiteru Kii and Kai Masuda and Satoshi Sasaki and Takumi Shiiyama and Heishun Zen and Ryunosuke Kuroda and Masao Kuriki and Nobuhiro Terunuma and Junji Urakawa and Yoshio Kamiya and Masakazu Washio",
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    AU - Masuda, Kai

    AU - Sasaki, Satoshi

    AU - Shiiyama, Takumi

    AU - Zen, Heishun

    AU - Kuroda, Ryunosuke

    AU - Kuriki, Masao

    AU - Terunuma, Nobuhiro

    AU - Urakawa, Junji

    AU - Kamiya, Yoshio

    AU - Washio, Masakazu

    PY - 2007

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    AB - Numerical evaluations have been performed to install a photo-cathode RF-gun into an oscillator FEL system which has been developed in Kyoto University. The original FEL system was consisted of a 4.5-cell thermionic RF gun with S-band accelerator tube of 3-m to oscillate the mid-infrared FEL. The electron beam properties have been evaluated from an RF-gun to an FEL by using PARMELA and ELEGANT. On the other hand, the FEL parameters have been calculated with GENESIS which takes the optical cavity into account. The evaluated peak current of the electron beam was 10-50 times as high as those with the thermionic RF-gun. Since the oscillator FEL requires a multi-bunch electron beam, evaluation of the round-trip development of the FEL has been also performed by a 100 bunch train beam. The results showed that the FEL gain saturation was achieved within 3 round-trips.

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