Diffraction and Smith-Purcell radiation on the hemispherical bulges in a metal plate

Abstract

The radiation resulting from the uniform motion of a charged particle near a hemispheric bulge in a metal plane is considered. The description of the radiation process based on the method of images is developed for the case of non-relativistic particle and perfectly conducting target. The spectral-angular and spectral densities of the diffraction radiation on the single bulge (as well as the Smith-Purcell radiation on the periodic string of bulges) are computed. The possibility of application of the developed approach to the case of relativistic incident particle is discussed.

arXiv commentpresented at RREPS-17, September 18-22, 2017, Hamburg, Germany