A new diffractometer for diffuse scattering studies on the ID28 beamline at the ESRF

Abstract

A new diffractometer is now available to the general user community at the ESRF. The new diffractometer is a side station of the high‐resolution inelastic X‐ray scattering spectrometer on beamline ID28 and is located in the same experimental hutch. Both instruments can be operated simultaneously. The new diffractometer combines a fast and low‐noise hybrid pixel detector with a variable diffraction geometry. The beam spot on the sample is 50 µm × 50 µm, where focusing is achieved by a combination of Be lenses and a KB mirror. Wavelengths from 0.5 to 0.8 Å can be used for the diffraction experiments. The setup is compatible with a variety of sample environments, allowing studies under non‐ambient conditions. The diffractometer is optimized to allow a rapid survey of reciprocal space and diffuse scattering for the identification of regions of interest for subsequent inelastic scattering studies, but can also be employed as a fully independent station for structural studies from both powder and single‐crystal diffraction experiments. Several software packages for the transformation and visualization of diffraction data are available. An analysis of data collected with the new diffractometer shows that the ID28 side station is a state‐of‐the‐art instrument for structural investigations using diffraction and diffuse scattering experiments.

Soft-phonon driven hexagonal-orthorhombic phase transition in BaVS3

“…X-ray thermal diffuse experiments were conducted first with the diffractometer built as a side station at the ID28 beamline of the European Synchrotron Radiation Facility (ESRF), with a monochromatic beam of 17.8 keV photons. The TDS maps were recorded at ID28 side station 20 with a Pilatus 3 × 1M detector at temperatures between 150 K and 390 K controlled to within ±5 K with an Oxford Cryostream 700 plus cooling system. The IXS experiments were conducted at the ID28 beamline of the ESRF, with the high resolution spectrometer operated at an energy of 17.8 keV.…”

Weak localization competes with the quantum oscillations in a natural electronic superlattice: The case of Na1.5(PO2)4(WO3Kolincio1, Pérez2, Canadell3 et al. 2020Phys. Rev. B1100View full textAdd to dashboardCite

“…1(a). The main structural characteristics expected for the MPTB To check the possibility of a CDW transition, full data collections were performed at RT and 130 K on the ID28 beamline at ESRF synchrotron [25]. There is no evidence for an additional scattering signal at RT but at 130 K diffuse scattering can be observed on different experimental frames.…”

Tuneable correlated disorder in alloys

“…Both x-ray diffuse scattering and grazing incidence inelastic scattering (GI-IXS) measurements were performed at the ID28 beamline at the European Synchrotron Radiation Facility, Grenoble, France [31,32] with all studies conducted at room temperature and pressure. The diffuse scattering studies utilized an incident beam energy of 12.65 keV to move away from the uranium L 3 absorption edge.…”