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Implementation of a beam deflection system for studies of liquid interfaces on beamline I07 at Diamond

DOI: 10.1107/S0909049512009272 DOI Help
PMID: 22514177 PMID Help

Authors: Tom Arnold (Diamond Light Source) , Chris Nicklin (Diamond Light Source) , Jonathan Rawle (Diamond Light Source) , Trevor Bates (Diamond Light Source) , Brian Nutter (Diamond Light Source) , Gary Mcintyre (Diamond Light Source) , Martin Burt (Diamond Light Source) , John Sutter (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Synchrotron Radiation , VOL 19 (3) , PAGES 408-416

State: Published (Approved)
Published: May 2012

Abstract: X-ray optics, based on a double-crystal deflection scheme, that enable reflectivity measurements from liquid surfaces/interfaces have been designed, built and commissioned on beamline I07 at Diamond Light Source. This system is able to deflect the beam onto a fixed sample position located at the centre of a five-circle diffractometer. Thus the incident angle can be easily varied without moving the sample, and the reflected beam is tracked either by a moving Pilatus 100K detector mounted on the diffractometer arm or by a stationary Pilatus 2M detector positioned appropriately for small-angle scattering. Thus the system can easily combine measurements of the reflectivity from liquid interfaces (Qz > 1 angstrom-1) with off-specular data collection, both in the form of grazing-incidence small-angle X-ray scattering (GISAXS) or wider-angle grazing-incidence X-ray diffraction (GIXD). The device allows operation over the energy range 1028 keV.

Journal Keywords: X-Ray Reflectivity; Gixd; Gisaxs; Air-Water; Liquid-Liquid.

Subject Areas: Technique Development


Instruments: I07-Surface & interface diffraction

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