Q-switching operation of the UVSOR-FEL

M. Hosaka, M. Katoh, A. Mochihashi, J. Yamazaki, K. Hayashi, Y. Takashima, H. Hama

Research output: Contribution to journalConference articlepeer-review

12 Citations (Scopus)


Q-switching operation of the storage ring FEL provides high peak power and is therefore very attractive to application experiments. On the UVSOR, the Q-switching is performed by modulation of an RF frequency. Collective synchrotron oscillation of the electron bunch is excited in the actual operation. However, it is found that damping time of the oscillation is 100 times faster than the one expected from synchrotron radiation, so the influence of the collective oscillation on the lasing is relatively small. Analysis reveals that the phenomenon is explained with Robinson damping.

Original languageEnglish
Pages (from-to)289-293
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-2
Publication statusPublished - 2003 Jul 11
EventProceedings of the 24th International Free Electron Laser Conference - Argonne, IL, United States
Duration: 2002 Sep 92002 Sep 13


  • Free electron laser
  • Q-switch
  • Robinson damping
  • Storage rings

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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