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Soft x-ray coherent scattering: Instrument and methods at ESRF ID08

DOI: 10.1063/1.2779218 DOI Help

Authors: Guillaume Beutier (Diamond Light Source) , Alain Marty (CNRS, France) , Freìdeìric Livet (CNRS, France) , Gerrit Van Der Laan (Diamond Light Source) , Stefan Stanescu (ESRF, France) , Peter Bencok (ESRF, France)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Review Of Scientific Instruments , VOL 78 (9)

State: Published (Approved)
Published: September 2007

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.

Journal Keywords: X-Ray Apparatus; X-Ray Scattering

Subject Areas: Physics

Facility: ESRF