forthcoming articles

Signal-to-noise ratio and spatial resolution are quantitatively analysed in the context of propagation based X-ray phase-contrast imaging. We show that the performance of the method is determined by the Fresnel number and the ratio of the real decrement to the imaginary part of the refractive index of the imaged object.

The High Energy Photon Source (HEPS) in Beijing achieved a beam energy of 6GeV, positioning it as the world's brightest fourth-generation synchrotron with the smallest emittance. This milestone enables groundbreaking advances in health sciences and various research fields, promising new insights into biological and quantum processes.

In this study, we showcase the application of a machine learning approach for the automated alignment of a soft X-ray spectrometer. Our method has been validated with experimental data at the beamline and significantly reduces the alignment time from approximately one hour to just a few minutes.

First implementation of full-field nano-holotomography in a dual beam configuration.

This study introduces a compact, portable femtosecond fibre laser system optimized for synchronization with SPring-8 synchrotron X-ray pulses in a uniform filling mode, offering a practical and cost-effective alternative to traditional, fixedly installed laser systems for time-resolved spectroscopy combining synchrotron X-ray pulses and laser pulses.

Phase retrieval at an axisymmetric ellipsoidal mirror is demonstrated with soft X-rays (277 eV), completed by a reconstruction of the focus as well as figure and alignment error of the mirror. Based on simple measurements of the cross-focal, three-dimensional intensity distribution, an intuitive algorithm is proposed which combines the advantages of high resolution, sensitivity, and reliability even under difficult conditions like a low source flux or weak spatial coherence.

Biological cells in suspension are manipulated using an optical stretcher and imaged using X-ray phase-contrast tomography.

Many macromolecular crystallography beamlines are now fitted with DECTRIS Eiger detectors, which are all delivered with optimized compression algorithms by default; they perform well with current framing rates and typical diffraction data. However, better lossless compression algorithms have been developed and are now available to the research community.

A compact bandpass prefilter eliminates electrons with energies above or below the desired range and can correct image aberrations up to 3rd order before the beam enters a time-of-flight analyzer. We demonstrated the imaging performance of the filter for two key applications of the high-energy momentum microscope: full-field core-level photoelectron diffraction and mapping of bulk valence bands.

A high-throughput and high-resolution powder X-ray diffractometer is developed at third experimental hutch of BL13XU, SPring-8. The diffractometer is equipped with six sets of 2D CdTe detectors and an automation system including sample exchange and equipment switching. The performance and demonstration results are presented.

A novel in situ correlative imaging X-ray Compton scattering computed tomography (XCS-CT) technique has been developed to unravel the fundamental relationship between the materials chemistry of light elements and their 3D structures. Here, this technique is applied to two types of batteries to map the internal lithium-ion concentrations.

Pump-probe experiments are possible on liquid interfaces using the LISA instrument at P08 beamline PETRA III, DESY. The time scales available range from 80 ps to seconds.

This paper describes the operation of X-ray gas monitors at the European XFEL at hard photon energies up to 30 keV and discusses the possibilities and limitations for future operation up to 50 keV.

In situ XAFS–XRD measurements of Zr oxidation and the ZrO₂–Y₂O₃ reaction up to 2519 K are reported. Analysis of anharmonic effects at high temperatures showed that Y₂O₃–ZrO₂ proceeded to stabilize Zr—O and Y—O bonding. The developed system was confirmed to be applicable for high-temperature investigations of nuclear fuel material.

The first X-ray spectral ptychography and resonant ptychographic computed tomography experiments at the SWING beamline at Synchrotron SOLEIL are described. To illustrate the application of the techniques, a metallic Ni wire sample is measured.

This paper presents a demonstration of the improved performance of an X-ray free-electron laser using the optical klystron mechanism and helical undulator configuration, in comparison with the common planar undulator configuration without optical klystron. The measured improvements are compared with simulations and show a good agreement and a significant reduction in saturation length and an increase in saturation power.

A system has been developed for irradiating samples with UV and visible light in situ during small-angle X-ray scattering data collection. The system is suitable for studying light-responsive samples such as photosurfactants, UV-hardening resins or light-active proteins.

A simple, easy-to-operate and robust beamline design is presented for five new hard X-ray beamlines in the scope of the latest upgrade of the Swiss Light Source. The performance increase is up to four orders of magnitude with respect to the current storage ring and beamline design.

A collection of personal reminiscences illuminates many widely unknown facts about the first steps of synchrotron radiation research; in particular, the events that brought Frascati close to world leadership in this domain.

A review of the history of ion beam figuring and current developments is presented, with a focus on the production of high-quality X-ray optics.

The laminography setup and software toolbox for efficient imaging of large-size samples are presented. Applicability of the developed technique is demonstrated by imaging slabs through a whole mouse brain sample stained with heavy elements.