Grating optical diffraction radiation - Promising technique for non-invasive beam diagnostics

P. Karataev, S. Araki, R. Hamatsu, H. Hayano, T. Hirose, T. Muto, G. Naumenko, A. Potylitsyn, J. Urakawa

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)


Two simple approaches for evaluating the transversal beam size using a slit and a grating are presented. A model for calculating the resonant diffraction radiation (RDR) characteristics from grating consisting of perfectly conducting strips spaced by vacuum gaps is developed. The proposed model allows calculating the RDR characteristics for a beam passing through a big slit between two gratings. It is noted that quasimonochromatic maxima appear in the RDR spectral-angular distribution, whose position is determined by the grating's period and observation geometry. The peak shape depends on the beam parameters. Having measured the RDR angular distribution at a fixed wavelength, one may evaluate the beam size using simple formulas obtained.

Original languageEnglish
Pages (from-to)201-211
Number of pages11
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1
Publication statusPublished - 2003 Jan
EventRREPS 2001 - Lake Aya, Russian Federation
Duration: 2001 Sept 12001 Sept 1


  • Electron beam diagnostics
  • Resonant diffraction radiation


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