title: Soft X-ray coherent scattering: instrument and methods at ESRF ID08.
abstract: An experimental setup has been developed to perform soft x-ray coherent scattering at beamline ID08 of the European Synchrotron Radiation Facility. An intense coherent beam was obtained by filtering the primary beam with the monochromator and a circular pinhole. A pinhole holder with motorized translations was installed inside the UHV chamber of the diffractometer. The scattered intensity was recorded in reflection geometry with a back-illuminated charge coupled device camera. As a demonstration we report experimental results of resonant magnetic scattering using coherent beam. The degree of coherence is evaluated, and it is shown that, while the vertical coherence is much higher than the horizontal one at the source, the situation is reversed at the diffractometer. The intensity of the coherent beam is also discussed.
authors: DRFMC, SP2M, CEA Grenoble, 17 avenue des Martyrs, 38054 Grenoble Cedex, France. guillaume.beutier@diamond.ac.uk
authors: Guillaume
authors: G
authors: Beutier
authors: Alain
authors: A
authors: Marty
authors: Frédéric
authors: F
authors: Livet
authors: Gerrit
authors: G
authors: van der Laan
authors: Stefan
authors: S
authors: Stanescu
authors: Peter
authors: P
authors: Bencok