PARTIALLY COHERENT EM RADIATION OF AN ELECTRON BUNCH

M.A. Gorbunovª, A.N. Lebedev

Lebedev Physical Institute of Russian Academy of Sciences, Moscow, Russia

Abstract

Peculiarities of electromagnetic radiation of a spatially non-uniform bunch of electron radiators are considered starting with a general discussion of their temporal and spatial coherence. The obtained spectral-angular characteristics permit to define a coherent part of the total radiation losses of the bunch. Their dependencies on the radiators density within the bunch, including a case of low particles number per one wavelength, permit to estimate the ultimate limit of possible coherent effects in rarified beams. The presented 3D visualization reveals radiators interference and permits to exclude a "useful" part of coherent radiation within a narrow angle along the particles relativistic velocity.

ª – corresponding author

Paper Slides

206