CERN Accelerating science

Article
Title	Wakefield Undulator For Generating X-rays
Author(s)	Opanasenko, A N
Publication	2004
In:	19th Russian Accelerator Conference, Dubna, Russian Federation, 4 - 9 Oct 2004, pp.278
Subject category	Accelerators and Storage Rings
Abstract	Conception of wakefield undulator (WFU) with very short period is presented. In the base of photon generation by the WFU lies a new mechanism of undulator-type radiation emitted by an ultrarelativistic electron bunch that undulates due to non-synchronous spatial harmonics of its wakefields while the bunch moves along a periodic waveguide. The creation of the WFU with sub-millimeter periods due to advanced accelerator technology opens possibilities to generate hard X-rays employing relatively low electron energies without external alternative fields.