Influence of the Beam Divergence on Diffraction Radiation

Abstract

Abstract. Nowadays the achievements in accelerator physics allows us to operate with evergrowing energy of the particles beams. However, the increase of the beam energy requests new issues to be resolved. For instance, it becomes necessary to develop new techniques for beam diagnostics. One of the promising solutions for beam diagnostics is based on diffraction radiation (DR).In this work similar to the methods of bunch length measurement based on transition radiation, the longitudinal size of a bunch is retrieved from the dependence of the DR intensity on the wavelength of radiation. Such dependence is expressed by so-called form-factor, which in turn depends on the beam parameters. Influence of the beam divergence on the form-factor of a beam has been examined in this work.

Influence of beam divergence on form-factor in X-ray diffraction radiation

“…There are only few works where the authors made advances to estimate the contribution of divergence of the beam in intensity of radiation [1][2][3][4].…”

“…In detail the influence of vertical divergence of the bunch on its longitudinal form-factor was investigated by Shpakov and Dabagov in work [4]. DR from half-plane was considered.…”