A New Small-Angle X-ray Scattering Instrument on the French CRG Beamline at the ESRF Multiwavelength Anomalous Scattering/Diffraction Beamline (D2AM)

Autor: Hiroshi Okuda, Stephan Arnaud, J.P. Simon, V. Comparat, Jean-François Berar, A. de Geyer, B. Caillot, Françoise Bley, Erik Geissler, Frédéric Livet, P. Jeantey
Rok vydání: 1997
Předmět:
Zdroj: Journal of Applied Crystallography. 30:900-904
ISSN: 0021-8898
DOI: 10.1107/s0021889897001684
Popis: A new small-angle X-ray scattering instrument has been set up on the D2AM-ESRF beamline. This modular instrument, which has the capacity to handle different sample environments (variable temperature and pressure), is designed for easy wavelength changes, i.e. for anomalous-scattering studies. This paper describes its design and discusses in some detail its positioning and alignment with respect to the focusing optics. The mirrors were found to be a major source of diffuse scattering, which was eliminated by rearrangement of the slit positions and refocusing of the optics. The present configuration yields a high flux (10~°photons s -~) and allows measurements down to q = 0.005 ~-1.
Databáze: OpenAIRE