Development of a three dimensional four mirror optical cavity for laser-Compton scattering

T. Akagi, S. Araki, Y. Funahashi, Y. Honda, H. Kataoka, T. Kon, S. Miyoshi, T. Okugi, T. Omori, K. Sakaue, H. Shimizu, T. Takahashi, R. Tanaka, N. Terunuma, J. Urakawa, M. Washio, H. Yoshitama

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


This paper describes a design and performance of a three-dimensional 4-mirror optical cavity for development of intense photon sources by laser-Compton scattering. We achieved the finesse of 4000 and average power of 2.6 kW in the cavity with the vertical laser beam spot size of 13±1μm in σ at the laser-electron interaction point. As a result, we observed 124±1 photons with average energy of 24 MeV per beam crossing, which corresponds to the generation of 2.7×108 photons per second.

Original languageEnglish
Pages (from-to)63-71
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Publication statusPublished - 2013


  • Compton
  • ILC
  • Non-planar cavity
  • Optical cavity
  • Polarized positron source
  • Pulse laser stacking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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