Synchrotron radiation has been used as a source for spectroscopic experiments in many countries. In this paper, the statistical properties of a light pulse emitted by an electron pulse in a storage ring or a synchrotron are studied in a classical formalism. The field is shown to be gaussian for every wavelength. The coherence time of the filtered synchrotron radiation is calculated.
C. Bénard and M. Rousseau, "Statistical properties of synchrotron radiation," J. Opt. Soc. Am. 64, 1433-1444 (1974)