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Proceedings Paper

Phase Space Distribution Of Brilliance Of Undulator Sources
Author(s): R. Coisson; R. P. Walker
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Paper 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.

Paper Details

Date Published: 5 May 1986
PDF: 8 pages
Proc. SPIE 0582, Insertion Devices for Synchrotron Sources, (5 May 1986); doi: 10.1117/12.950909
Show Author Affiliations
R. Coisson, Universita di Parma (Italy)
R. P. Walker, Daresbury Laboratory (UK)


Published in SPIE Proceedings Vol. 0582:
Insertion Devices for Synchrotron Sources
Ingolf E. Lindau; Roman O. Tatchyn, Editor(s)

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