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Proceedings Paper

Search for a chirp of a synchrotron x-ray beam at the European Synchrotron Radiation Facility: II. Analysis and theory
Author(s): Jean-Francois Eloy; Andreas K. Freund
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Paper Abstract

In an earlier paper the emission process of synchrotron radiation was studied theoretically for the current induced by a single electron interacting with a bending magnet showing that a chirp of the hard x-ray could be expected that could be used for a compression of x-ray bunches using dispersive optics. In this paper we will present a detailed analysis of the results of an experimental study that was conducted on a bending magnet beamline (BM5) at the ESRF to learn if such a chirp exists for an electron bunch as a function of the x-ray energy and of the emission angle below and above the electron orbit plane. Fourier transforms of the observed time signals were performed that indicated a phase shift of the x-rays with energy and emission angle. Using a classical method to describe the propagation of quasi-Gaussian beams and introducing partial time and space derivatives of the wave packet drift, we established a new relationship to describe analytically this particular behavior of synchrotron x-rays that involves a relativistic Doppler effect.

Paper Details

Date Published: 1 December 1998
PDF: 14 pages
Proc. SPIE 3451, Time Structure of X-Ray Sources and Its Applications, (1 December 1998); doi: 10.1117/12.331831
Show Author Affiliations
Jean-Francois Eloy, Direction des Applications Militaires/CEA (France)
Andreas K. Freund, European Synchrotron Radiation Facility (France)


Published in SPIE Proceedings Vol. 3451:
Time Structure of X-Ray Sources and Its Applications
Andreas K. Freund; Henry P. Freund; Malcolm R. Howells, Editor(s)

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