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Observation of mutual coherence of spontaneous radiation from two undulators separated by an achromatic bend

  • N. G. Gavrilov
  • , G. N. Kulipanov
  • , V. N. Litvinenko
  • , I. V. Pinayev
  • , V. M. Popik
  • , I. G. Silvestrov
  • , A. N. Skrinsky
  • , A. S. Sokolov
  • , N. A. Vinokurov
  • , P. D. Vobly

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A method of extracting radiation from the optical cavity of a free electron laser using an insignificant bend of the electron beam is discussed, noting that the modulation of its longitudinal density needs to be conserved. Modernization of the optical klystron magnetic system of the VEPP-3 storage ring has made it possible to realize an achromatic bend of electrons between two undulators. In such a case the mutual coherence of the radiation from the undulators has been demonstrated by means of Young's interference experiment. The experimental results confirm the possibility of implementing the suggested technique for radiation extraction.

Original languageEnglish
Pages (from-to)63-65
Number of pages3
JournalNuclear Inst. and Methods in Physics Research, A
Volume304
Issue number1-3
DOIs
StatePublished - Jul 1 1991

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