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Forthcoming article in Journal of Synchrotron Radiation



Synchrotron radiation research is rapidly expanding with many new sources of radiation being created globally. Synchrotron radiation plays a leading role in pure science and in emerging technologies. The Journal of Synchrotron Radiation provides comprehen



 



Understanding the instrumental profile of synchrotron radiation X-ray powder diffraction beamlines
A ray-tracing algorithm is proposed to support the design of X-ray powder diffraction beamlines. The instrumental profile function can be predicted, and the contribution of all optical components and physical effects singled out.



Long, elliptically bent, active X-ray mirrors with slope errors <200 nrad
Optical metrology and finite-element analysis studies of two actively bent X-ray mirrors are presented. Each 900 mm-long mirror can be mechanically bent to a range of elliptical profiles with state-of-the-art slope errors of <200 nrad r.m.s.



Effective aperture of X-ray compound refractive lenses
A new definition of the effective aperture of the X-ray compound refractive lens is proposed.



Time-resolved XAFS measurement using quick-scanning techniques at BSRF
A new QXAFS system has been established at Beijing Synchrotron Radiation Facility for time-resolved XAFS studies.



Fluid dynamics analysis of a gas attenuator for X-ray FELs under high-repetition-rate operation
Fluid dynamics simulations of the short time-scale (microseconds and longer) evolution of the density and temperature distributions in a gas attenuator for X-ray free-electron lasers under high-repetition-rate pulsed operation are presented along with comparisons using continuous-wave inputs.



SUT-NANOTEC-SLRI beamline for X-ray absorption spectroscopy
Detailed information is provided regarding the current status and performance of the SUT-NANOTEC-SLRI beamline, at the Synchrotron Light Research Institute (Thailand), for X-ray absorption spectroscopy in the photon energy range 1.25–10 keV.



Finite-element modelling of multilayer X-ray optics
The finite-element analysis (FEA) model provides a basic tool for predicting the temperature, deformation, strain and stress distribution properties of synchrotron radiation optics under heat load. By use of ANSYS layer-functioned elements, a FEA model of multilayer X-ray optics has been implemented in this work.



Transverse gradient in Apple-type undulators
This theory demonstrates the existence of a variable transverse K gradient in Apple-type undulators. It is supported by numerical simulations to assess the limits of this analytical approach.



Non-contact luminescence lifetime cryothermometry for macromolecular crystallography
The concept and practical implementation of a system for remote monitoring of the temperature of protein crystals down to 10 K using a microscopic bis­muth germanate scintillation sensor are presented.



A high-pressure single-crystal-diffraction experimental system at 4W2 beamline of BSRF
An experimental system has been developed at beamline 4W2 of the Beijing Synchrotron Radiation Facility to perform high-pressure single-crystal diffraction. The design and operation of this system are reported together with a recent result to illustrate its performance.



Hard X-ray-induced damage on carbon–binder matrix for in situ synchrotron transmission X-ray microscopy tomography of Li-ion batteries
The objective here is to investigate hard X-ray induced damage on the carbon–binder matrix in Li-ion battery cells in situ and find ways to avoid the damage. The radiation damage on the carbon–binder matrix during TXM tomography can be avoided by minimizing the accumulated X-ray dose and choosing intermittent X-ray exposure.



Complex solutions under shear and pressure: a rheometer setup for X-ray scattering experiments
Development of a high-pressure rheometer for in situ X-ray scattering experiments.



SOLEIL shining on the solution-state structure of biomacromolecules by synchrotron X-ray footprinting at the Metrology beamline
This work presents X-ray footprinting of biomolecules performed for the first time at the X-ray Metrology beamline at the SOLEIL synchrotron. Protein–protein interactions and protein–lipid assemblies were studied.



Development of optical choppers for time-resolved measurements at soft X-ray synchrotron radiation beamlines
Two types of optical choppers for time-resolved measurements in soft X-ray beamlines of synchrotron radiation facilities were developed, which are utilized under ultra-high-vacuum conditions.



Advances in testing the effect of acceleration on time dilation using a synchrotron Mössbauer source
New results, additional techniques and know-how acquired, developed and employed in a recent HC-1898 experiment at the Nuclear Resonance Beamline ID18 of ESRF are presented, in the quest to explore the acceleration effect on time dilation.



Caltrop particles synthesized by photochemical reaction induced by X-ray radiolysis
X-ray radiolysis of a Cu(CH3COO)2 solution was observed to produce caltrop-shaped particles of cupric oxide (CuO).



Nanofabrication and characterization of a grating-based condenser for uniform illumination with hard X-rays
An X-ray condenser based on gratings has been successfully fabricated and its optical character measured.



Radiography registration for mosaic tomography
A hybrid method to stitch X-ray computed tomography datasets is proposed and the feasibility to apply the scheme in a synchrotron tomography beamline with micrometre resolution is shown.



Respiratory-gated KES imaging of a rat model of acute lung injury at the Canadian Light Source
A K-edge subtraction imaging approach for respiratory-gated lung imaging using iodine and xenon contrast agents in a rodent model is presented.