Search for a chirp of a synchrotron x-ray beam at the European Synchrotron Radiation Facility: I. Experiments

Jean-Francois Eloy; Bernard Brullot; Jean Doublier; Andreas K. Freund; Remy Marmoret; Olivier Mathon; Remi Tucoulou; Bruno Villette; Rene Wrobel

doi:10.1117/12.331832

1 December 1998 Search for a chirp of a synchrotron x-ray beam at the European Synchrotron Radiation Facility: I. Experiments

Jean-Francois Eloy, Bernard Brullot, Jean Doublier, Andreas K. Freund, Remy Marmoret, Olivier Mathon, Remi Tucoulou, Bruno Villette, Rene Wrobel

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Proceedings Volume 3451, Time Structure of X-Ray Sources and Its Applications; (1998) https://doi.org/10.1117/12.331832
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

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.

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Jean-Francois Eloy, Bernard Brullot, Jean Doublier, Andreas K. Freund, Remy Marmoret, Olivier Mathon, Remi Tucoulou, Bruno Villette, and Rene Wrobel "Search for a chirp of a synchrotron x-ray beam at the European Synchrotron Radiation Facility: I. Experiments", Proc. SPIE 3451, Time Structure of X-Ray Sources and Its Applications, (1 December 1998); https://doi.org/10.1117/12.331832

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KEYWORDS

Picosecond phenomena

Sensors

X-rays

Signal detection

Synchrotron radiation

Time metrology

Gallium arsenide

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