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: Contribution to conferencePaper

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
Pages390-393
Number of pages4
Publication statusPublished - 2007 Dec 1
Event29th International Free Electron Laser Conference, FEL 2007 - Novosibirsk, Russian Federation
Duration: 2007 Aug 262007 Aug 31

Conference

Conference29th International Free Electron Laser Conference, FEL 2007
CountryRussian Federation
CityNovosibirsk
Period07/8/2607/8/31

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Numerical evaluation of oscillator fel with multi-bunch photo-cathode RF-gun in Kyoto university'. Together they form a unique fingerprint.

  • Cite this

    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. 390-393. Paper presented at 29th International Free Electron Laser Conference, FEL 2007, Novosibirsk, Russian Federation.