Status of the hard X-ray microprobe beamline ID22 of the European Synchrotron Radiation Facility

Abstract

The ESRF synchrotron beamline ID22, dedicated to hard X-ray microanalysis and consisting of the combination of X-ray fluorescence, X-ray absorption spectroscopy, diffraction and 2D/3D X-ray imaging techniques, is one of the most versatile instruments in hard X-ray microscopy science. This paper describes the present beamline characteristics, recent technical developments, as well as a few scientific examples from recent years of the beamline operation. The upgrade plans to adapt the beamline to the growing needs of the user community are briefly discussed.

Crossed Ga2O3/SnO2 Multiwire Architecture: A Local Structure Study with Nanometer Resolution

“…A series of nine EBSD patterns recorded along a line from the SnO 2 branch to the Ga 2 O 3 wire passing through the intersection area A more accurate chemical composition analysis was performed with the use of a hard X-ray nanoprobe at the undulator beamline ID22 at the European Synchrotron Radiation Facility (ESRF). 42 The goal was to probe compositional heterogeneities and local symmetry within the single crossed multiwire SnO 2 /Ga 2 O 3 structures. Using a pair of Kirkpatrick-Baez Si mirrors, the experimental approach involved the collection of X-ray fluorescence (XRF) emissions induced by a highly focused and intense hard X-ray monochromatic beam [100 × 100 nm 2 spot size (V × H) with 5 × 10 10 ph/s at 12 keV] at room temperature in air environment.…”

Cone-beam x-ray phase-contrast tomography for the observation of single cells in whole organs

“…At some distance behind the undulator a pair of beam-defining slits is placed, followed by KB-mirrors to focus the radiation to a small spot. The focusing is achieved with KB-mirrors that are coated with a multi-layer structure and bent with 4 actuators to an elliptical form [106]. A secondary source is created 27 m behind the undulator by using high heat-load slits.…”

“…At the ID16a, the KB mirrors are located at about 185 m behind the undulator and by using a fixed-curvature, multi-layer KB-mirror, focus sizes in the range of 10 to 20 nm in both directions are expected in the future [44,96,106]. The energy is fixed at E = 17.0 keV with a bandwidth similar to those at the ID22 beamline.…”

Layout and first results of the nanotomography endstation at the P05 beamline at PETRA III

“…While several beamlines offer dedicated X-ray nanotomography experiments for the energy range of up to 15 keV, only a few instruments allow for higher energies [6,7,8]. Apart from the P05 nanotomography experiment, only the newly refurbished ESRF ID-16 beamline offers nanotomography in a similar energy range of up to 30 keV.…”