Experimental observation and investigation of the prewave zone effect in optical diffraction radiation

Pavel Vladimirovich Karataev, S. Araki, A. Aryshev, G. Naumenko, A. Potylitsyn, N. Terunuma, J. Urakawa

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Transition radiation (TR) and diffraction radiation (DR) has widely been used for both electron beam diagnostics and generation of intense radiation beams in the millimeter and the submillimeter wavelength range. Recently, it was theoretically predicted that TR and DR properties change either at extremely high energies of electrons or at long radiation wavelengths. This phenomenon was called a prewave zone effect. We have performed the first observation and detailed investigation of the prewave zone effect in optical diffraction radiation at 1.28 GeV electron beam at the KEK-Accelerator Test Facility (KEK-ATF). The beam energy at KEK-ATF is definitely not the highest one achieved in the world. Since we could easily observe the effect, at higher energies it might cause serious problems. We developed and applied a method for prewave zone suppression valid for optical wavelengths. Furthermore, a method for prewave zone suppression applicable for longer radiation wavelengths is discussed.

Original languageEnglish
Article number032804
JournalPhysical Review Special Topics - Accelerators and Beams
Volume11
Issue number3
DOIs
Publication statusPublished - 10 Mar 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Nuclear and High Energy Physics

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