Related Experiment Video
Updated: Jun 23, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Universal function for the brilliance of undulator radiation considering the energy spread effect
Takashi Tanaka1, Hideo Kitamura
1RIKEN SPring-8 Center, Koto 1-1-1, Sayo, Hyogo 679-5148, Japan. ztanaka@spring8.or.jp
Abstract:
Angular and spatial profiles of undulator radiation have been investigated to derive a universal function that evaluates the brilliance of undulator radiation and takes into account the effects of electron beam emittance and energy spread. It has been found that the effects of energy spread on the angular divergence and source size can be expressed by simple analytic expressions, and a universal brilliance function has been derived by convolution with the electron beam distribution functions. Comparisons with numerical results have been carried out to show the validity and applicability of the universal function.
Related Concept Videos
Dual Nature of Electromagnetic (EM) Radiation
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
The de Broglie Wavelength
Intensity Of Electromagnetic Waves
Interference and Diffraction
Energy Carried By Electromagnetic Waves
Photoelectric Effect

