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Proceedings Paper

Search for a chirp of a synchrotron x-ray beam at the European Synchrotron Radiation Facility: I. Experiments
Author(s): Jean-Francois Eloy; Bernard Brullot; Jean Doublier; Andreas K. Freund; Remy Marmoret; Olivier Mathon; Remi Tucoulou; Bruno Villette; Rene Wrobel
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Paper Abstract

In an earlier paper the emission 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 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. Our results for the pulse shape show that such a chirp could not be clearly detected at a level of several tens of picoseconds FWHM. This means that the phase relationships of all the electrons producing the x- ray bunch are averaged out leading to the absence of a net chirp. However, a fast Fourier transform of the observed signal showed that there was a phase lag. This will be described in a companion paper. Here, the details of the experimentally observed time structure will be given.

Paper Details

Date Published: 1 December 1998
PDF: 12 pages
Proc. SPIE 3451, Time Structure of X-Ray Sources and Its Applications, (1 December 1998); doi: 10.1117/12.331832
Show Author Affiliations
Jean-Francois Eloy, Direction des Applications Militaires/CEA (France)
Bernard Brullot, Direction des Applications Militaires/CEA (France)
Jean Doublier, Direction des Applications Militaires/CEA (France)
Andreas K. Freund, European Synchrotron Radiation Facility (France)
Remy Marmoret, Direction des Applications Militaires/CEA (France)
Olivier Mathon, European Synchrotron Radiation Facility (France)
Remi Tucoulou, European Synchrotron Radiation Facility (France)
Bruno Villette, Direction des Applications Militaires/CEA (France)
Rene Wrobel, Direction des Applications Militaires/CEA (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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