Phase Space Distribution Of Brilliance Of Undulator Sources

R. Coisson; R. P. Walker

doi:10.1117/12.950909

5 May 1986 Phase Space Distribution Of Brilliance Of Undulator Sources

R. Coisson, R. P. Walker

Proceedings Volume 0582, Insertion Devices for Synchrotron Sources; (1986) https://doi.org/10.1117/12.950909
Event: International Conference on Insertion Devices for Synchrotron Sources, 1985, Stanford, United States

Abstract

As an optical source, an undulator can be described by its distribution of brilliance in phase space (angle and position in the transverse plane). This is a convolution of single-particle diffraction pattern and electron beam distribution. Approximate peak brilliance and phase space widths are given. By analogy between brilliance and Wigner function, the depth-of-field and diffraction widths are shown to be essentially the same thing. The peak brilliance is shown to have a broad maximum as a function of the beam β function (β = L/2π but is practially independent of β at short wavelengths.

Citation Download Citation

R. Coisson and R. P. Walker "Phase Space Distribution Of Brilliance Of Undulator Sources", Proc. SPIE 0582, Insertion Devices for Synchrotron Sources, (5 May 1986); https://doi.org/10.1117/12.950909

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