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

Abstract

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 (1010photons s−1) and allows measurements down to q = 0.005 Å−1.

SAXS from Four‐Arm Polyelectrolyte Stars in Semi‐Dilute Solutions

“…A series of small-angle X-ray scattering (SAXS) experiments were performed on the beam line BM02 (CRG-D2AM) [28] of the European Synchrotron Radiation Facility (ESRF), Grenoble, France. The incident energy was 15 keV.…”

Influence of insoluble elements on the nanostructure of water altered glasses

“…ASAXS: Anomalous X-ray scattering at the K-edge of Zr was performed on the line BM2 [18] from the French CRG at the ESRF. The energy edge was calibrated in absorption configuration using different standards such as Zr foil, ZrO 2 powder, Zr alcoxide and different Zr salts.…”

Influence of monovalent ions on density fluctuations in hydrothermal aqueous solutions by small angle X-ray scattering

“…20 The beam energy was set to 24 keV, corresponding to a wavelength of 0.516 Å; and this energy value was enough for the transmission of the beam through the sample and its container to be sufficient for experimental purpose (that is, a total transmission of 12.5% and 15.2% for pure water at 30 MPa and, respectively, 303 K and 713 K). The distance between the sample and the detector was 92 cm and a charge-coupled device camera was used.…”