Photon generation by laser-Compton scattering at the KEK-ATF

S. Miyoshi*, T. Akagi, S. Araki, Y. Funahashi, T. Hirose, Y. Honda, M. Kuriki, X. Li, T. Okugi, T. Omori, G. Pei, K. Sakaue, H. Shimizu, T. Takahashi, N. Terunuma, J. Urakawa, Y. Ushio, M. Washio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


We performed a photon generation experiment by laser-Compton scattering at the KEK-ATF, aiming to develop a Compton based polarized positron source for linear colliders. In the experiment, laser pulses with a 357 MHz repetition rate were accumulated and their power was enhanced by up to 250 times in the FabryPerot optical resonant cavity. We succeeded in synchronizing the laser pulses and colliding them with the 1.3 GeV electron beam in the ATF ring while maintaining the laser pulse accumulation in the cavity. As a result, we observed 26.0±0.1 photons per electron-laser pulse crossing, which corresponds to a yield of 108 photons in a second.

Original languageEnglish
Pages (from-to)576-578
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
Publication statusPublished - 2010 Nov 1


  • Cavity
  • Compton
  • ILC
  • Mode locked laser
  • Optical resonant
  • Polarized positron source
  • Pulse laser stacking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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