Femto-second profile moniitor using pulsed laser storage in an optical cavity

K. Sakaue, M. Washio, S. Araki, M. Fukuda, Y. Higashi, Y. Honda, T. Taniguchi, N. Terunuma, J. Urakawa, N. Sasao

Research output: Contribution to conferencePaperpeer-review


We have been developing a pulsed-laser storage technique in a super-cavity for a compact x-ray sources. The pulsed-laser super-cavity enables to make high peak power and small waist laser at the collision point with the electron beam. Recently, using 357MHz mode-locked Nd:VAN laser pulses which stacked in a super-cavity scattered off a multi-bunch electron beam, we obtained a multi-pulse x-rays through the laser-Compton scattering. Detecting an x-ray pulse-by-pulse using high-speed detector makes it possible to measure the 3-dimensional beam size with bunch-by-bunch scanning the laserwire target position and pulse timing. This technique has a feasibility of measuring femto-second bunch length by stacking femto-second pulse in an optical cavity. Design study of femto-second laser-wire monitor and the experimental demonstration using pico-second pulse storage and multi-bunch electron beam will be presented at the conference.

Original languageEnglish
Number of pages4
Publication statusPublished - 2009
Event31st International Free Electron Laser Conference, FEL 2009 - Liverpool, United Kingdom
Duration: Aug 23 2009Aug 28 2009


Other31st International Free Electron Laser Conference, FEL 2009
Country/TerritoryUnited Kingdom

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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