Polarization control of an X-ray free-electron laser with a diamond phase retarder

Circularly polarized X-ray free-electron laser beams have been generated at 11.56 keV, using a diamond crystal phase retarder at SACLA.

Performance of a collimating L-shaped laterally graded multilayer mirror for the IXS analyzer system at NSLS-II

The collimating L-shaped laterally graded multilayer mirror is a vital part of the ultrahigh-resolution inelastic X-ray scattering spectrometer at NSLS-II. This article presents numerical evaluation and experimental characterization of the mirror performance as well as the technical requirements of its operation.

Development of a bent Laue beam-expanding double-crystal monochromator for biomedical X-ray imaging

A bent Laue beam-expanding double-crystal monochromator was developed and tested at the Biomedical Imaging and Therapy beamline at the Canadian Light Source. The expander will reduce scanning time for micro-computed tomography and allow dynamic imaging that has not previously been possible at this beamline.

X-ray harmonics rejection on third-generation synchrotron sources using compound refractive lenses

A new method of harmonics suppression based on X-ray refractive optics has been proposed and attenuation of higher-orders harmonics to five orders of magnitude using the monochromator detuning was achieved.

Microfocusing options for the inelastic X-ray scattering beamline at sector 3 of the Advanced Photon Source

Simulated beam sizes and image distances of the toroidal focusing mirror as a function of the grazing incident angle are presented.

High-efficiency zone-plate optics for multi-keV X-ray focusing

Multilevel zone plates have been successfully combined with zone-plate stacking to achieve both high-resolution and high-efficiency nanofocusing at 6.5 keV photon energy.

Fast continuous energy scan with dynamic coupling of the monochromator and undulator at the DEIMOS beamline

In order to improve the efficiency of X-ray absorption data recording, a fast scan method, the Turboscan, has been developed on the DEIMOS beamline at Synchrotron SOLEIL, consisting of a software-synchronized continuous motion of the monochromator and undulator motors. This process suppresses the time loss when waiting for the motors to reach their target positions, as well as software dead-time, while preserving excellent beam characteristics.

Anisotropic elasticity of silicon and its application to the modelling of X-ray optics

Anisotropic elasticity of single-crystal silicon, applications to modelling of a bent X-ray mirror, and thermal deformation of a liquid-nitrogen-cooled monochromator crystal are presented.

Benchmarking and validation of a Geant4–SHADOW Monte Carlo simulation for dose calculations in microbeam radiation therapy

Benchmarking and validation of a new Monte Carlo code for dose calculations in microbeam radiation therapy are described.

Characterization of an in-vacuum PILATUS 1M detector

An in-vacuum PILATUS 1M detector that covers a photon energy range from 10 keV down to 1.75 keV is characterized in terms of radiometric and geometric properties with low uncertainties. Benefits of photon energies below 5 keV are demonstrated by grazing-incidence small-angle X-ray scattering measurements.

Matching X-ray beam and detector properties to protein crystals of different perfection

Expressions are given to match X-ray data collection facilities to the intrinsic diffraction properties of crystals with different degrees of perfection.

Investigation of surface topology of printed nanoparticle layers using wide-angle low-Q scattering

A novel scattering technique in reflection geometry which enables a topological description of very rough surfaces of disordered systems is presented. The set-up uses soft X-rays at wide incident angles.

Application of singular value decomposition analysis to time-dependent powder diffraction data of an in-situ photodimerization reaction

A successful application of singular value decomposition analysis to time-dependent powder diffraction data of an in-situ photodimerization reaction of some anthracene derivatives is presented.

Correction method for the self-absorption effects in fluorescence extended X-ray absorption fine structure on multilayer samples

A novel method is proposed for the correction of self-absorption effects of extended X-ray absorption fine structure measured in the fluorescence mode on single-layer or multilayer samples. The validity of this method is verified by good agreements on the corrected spectra of a Cr/C multilayer measured at different experimental geometries.

Unsupervised cell identification on multidimensional X-ray fluorescence datasets

A method for unsupervised identification of biological cells in X-ray fluorescence microscopy data is described, allowing us to obtain distributions for elemental content by cell type without manual labeling.

Synchrotron far-infrared spectroscopy of corroded steel surfaces using a variable angle of incidence

The analysis of thin films and corrosion products by synchrotron far-infrared spectroscopy has shown that using a range of incidence angles leads to improved identification of the spectral features. The effect of the incidence angle on the band intensity in the infrared spectra is described with respect to the surface roughness.

A synchrotron-based local computed tomography combined with data-constrained modelling approach for qu­antitative analysis of anthracite coal microstructure

A quantitative local computed tomography combined with data-constrained modelling has been developed. The method could improve distinctly the spatial resolution and the composition resolution in a sample larger than the field of view, for quantitative characterization of three-dimensional distributions of material compositions and void.

Three-dimensional coherent diffractive imaging on non-periodic specimens at the ESRF beamline ID10

The recent development of instrumentation for coherent diffraction imaging with hard X-rays is presented. The three-dimensional structure of a cluster made of randomly assembled Fe₂P nanorods has been revealed using coherent 8 keV X-rays.

Data processing software suite SITENNO for coherent X-ray diffraction imaging using the X-ray free-electron laser SACLA

The software suite SITENNO is developed for processing diffraction data collected in coherent X-ray diffraction imaging experiments of non-crystalline particles using an X-ray free-electron laser.

Combining Monte Carlo methods with coherent wave optics for the simulation of phase-sensitive X-ray imaging

A framework combining wave-optics with Monte Carlo methods for numerical simulations of phase-sensitive X-ray imaging has been developed.

Sample thickness and qu­antitative concentration measurements in Br K-edge XANES spectroscopy of organic materials

A method of quantifying absorber concentration from XANES spectra while correcting for effects of variable sample thickness is described.

Macromolecular crystallography beamline X25 at the NSLS

A description of the upgraded beamline X25 at the NSLS, operated by the PXRR and the Photon Sciences Directorate serving the Macromolecular Crystallography community, is presented.

08B1-1: an automated beamline for macromolecular crystallography experiments at the Canadian Light Source

The Canadian Macromolecular Crystallography Facility beamline 08B1-1, an automated and remotely accessible beamline at the Canadian Light Source, is reported. Scientific highlights are also presented.

The benefit of the European User Community from transnational access to national radiation facilities

Owing to its success in promoting connections between users and facilities, the European Synchrotron User Organization champions the continuation of transnational access to national radiation sources in the European research area.

Efficient focusing of 8 keV X-rays with multilayer Fresnel zone plates fabricated by atomic layer deposition and focused ion beam milling. Erratum

Corrections to the article by Mayer et al. [J. Synchrotron Rad. (2013), 20, 433–440] are given.

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