Angle-resolved X-ray emission spectroscopy facility realized by an innovative spectrometer rotation mechanism at SPring-8 BL07LSU

The X-ray emission spectrometer at SPring-8 BL07LSU has been upgraded for flexible spectrometer rotation, enabling angle-resolved measurements. This upgrade includes a sophisticated sample chamber, precise rotation mechanism and an integrated control system, streamlining measurements and expanding its usability.

The role of carboxyl­ate ligand orbitals in the breathing dynamics of a metal-organic framework by resonant X-ray emission spectroscopy

Orbital occupancy of the ligand carboxyl­ate in-plane lone pair orbitals modulates the vibrational dynamics of certain breathing modes responsible for the structural phase transition of a carboxyl­ate metal-organic framework.

Enhancing electrospray ionization efficiency for particle transmission through an aerodynamic lens stack

We investigate the performance of an electrospray aerosol generator at the European X-ray Free Electron Laser for single-particle coherent diffractive imaging. The findings highlight enhanced particle transmission efficiency with VUV ionization, larger orifice diameters, electric fields and 3D-printed twin-nozzle design, providing insights for optimizing aerosol injection in XFEL experiments.

Correlation of refractive index based and THz streaking arrival time tools for a hard X-ray free-electron laser

The X-ray free-electron laser pulse arrival time was measured at SwissFEL by THz streaking and spatial encoding simultaneously. The performance of the device was validated by shot-to-shot correction of a pump–probe measurement. The data processing and sources of jitter are discussed.

Ultrashort large-bandwidth X-ray free-electron laser generation with a dielectric-lined waveguide

Ultrashort large-bandwidth X-ray free-electron laser generation is proposed using a dielectric-lined waveguide. With this modulation scheme through strong terahertz wakefield self-excited, a cheap and flexible large-bandwidth operation mode is researched for free-electron-laser complexes.

Combination of XEOL, TR-XEOL and HB-T interferometer at the TPS 23A X-ray nanoprobe for exploring quantum materials

The unprecedented strategy of combining XEOL, TR-XEOL and the HB-T interferometer at the TPS 23A X-ray nanoprobe beamline will open new avenues for exploring quantum materials.

A thermal deformation optimization method for cryogenically cooled silicon crystal monochromators under high heat load

A partial cooling method is proposed for minimizing thermal deformation of the monochromator crystal at low-emittance diffraction-limited synchrotron radiation beamlines. The influence of the heat transfer efficiency, crystal temperature distribution and beam size on crystal surface was investigated, and a set of thermal deformation optimization techniques for high-heat-load monochromators was developed.

Investigation of structural and reflective characteristics of short-period Mo/B₄C multilayer X-ray mirrors

Short-period Mo/B₄C multilayer mirrors are shown to be extremely promising for use in synchrotron applications.

Sub-micrometre focusing of intense 100 keV X-rays with multilayer reflective optics

A high-flux sub-micrometre focusing system for 100 keV X-rays using multilayer focusing mirrors was constructed and evaluated at the undulator beamline BL05XU of SPring-8.

Novel correction procedure for compensating thermal contraction errors in the measurement of the magnetic field of superconducting undulator coils in a liquid helium cryostat

A novel correction procedure, for compensating thermal contraction errors in the measurement of the magnetic field of superconducting undulator coils in a liquid helium cryostat by using measurements made with multiple Hall probes placed at fixed distance, is proposed. The effectiveness and limitations of the correction procedure are validated by numerical simulations.

Qu­antifying bunch-mode influence on photon-counting detectors at SPring-8

The effects of SPring-8 bunch-modes on the count-loss features of photon-counting detectors and effective maximum count rates are discussed.

Extracting the electronic structure signal from X-ray and electron scattering in the gas phase

A new method to determine molecular structure from large-angle scattering for X-ray and electron scattering from free gas-phase molecules is described.

DOMAS: a data management software framework for advanced light sources

DOMAS is a data management software framework specifically designed and developed for advanced light sources in China. It effectively tackles challenges related to data storage, metadata cataloguing, data transfer and data access.

Open-source electrochemical cell for in situ X-ray absorption spectroscopy in transmission and fluorescence modes

An economical and easy-to-fabricate electrochemical cell for in situ X-ray absorption spectroscopy was developed, fabricated, and used to obtain XANES and EXAFS data for a catalyst for the oxygen reduction reaction. The experiments were run with and without oxygen purging using an attachment that avoids interactions between bubbles and the working electrode, and X-ray absorption spectroscopy data were obtained under applied potential and with and without gas purging, showing the capabilities of this electrochemical cell for in situ experiments.

Image registration for in situ X-ray nano-imaging of a composite battery cathode with deformation

A deep-learning-assisted image registration method is demonstrated for in situ X-ray nano-imaging of a composite battery cathode electrode with deformation. The method handles the challenges associated with electrode deformation by identifying and tracking isolated cathode particles separately. This approach could facilitate analysis of the correlation between intraparticle reaction heterogeneity and electrode deformation, which collectively affect the performance of real-world batteries.

Determination of optimal experimental conditions for accurate 3D reconstruction of the magnetization vector via XMCD-PEEM

The performance of X-ray magnetic circular dichroism photoemission electron microscopy for vector imaging of complex three-dimensional magnetic textures is investigated.

Submillisecond in situ X-ray diffraction measurement system with changing temperature and pressure using diamond anvil cells at BL10XU/SPring-8

A submillisecond X-ray diffraction measurement system targeted at microscopic samples in a diamond anvil cell has been developed at BL10XU/SPring-8. This system has enabled the visualization of structural changes of high-pressure samples in the diamond anvil cell during instantaneous heating and quenching experiments combined with laser heating and during instantaneous compression and decompression experiments using a two-line gas-pressure control system, with a resolution in the submillisecond range.

Grazing-incidence synchrotron radiation diffraction studies on irradiated Ce-doped and pristine Y-stabilized ZrO₂ at the Rossendorf beamline

Irradiated Ce-doped yttria-stabilized zirconia (YSZ) and pure YSZ phases were characterized using grazing incidence (GI) synchrotron radiation diffraction. A corresponding module for measurements in GI mode was developed at ROBL and relevant technical details of sample alignment and data collection are presented.

ForMAX – a beamline for multiscale and multimodal structural characterization of hierarchical materials

ForMAX is a new beamline at the MAX IV Laboratory, providing multiscale and multimodal structural characterization by combining small- and wide-angle X-ray scattering with full-field tomographic imaging.

Finback: a web-based data collection system at SSRF biological macromolecular crystallography beamlines

Finback is a biological macromolecular crystallography data collection system that features a user-friendly interactive web-based graphical user interface. The backend is based on the Experimental Physics and Industrial Control System and the frontend has been developed with several modern network technologies including WebSocket, WebGL, WebWorker and WebAssembly.

A new modular framework for high-level application development at HEPS

The development of Pyapas, a new framework for high-level applications at the High Energy Photon Source, Beijing, China, is discussed. Pyapas enables the easy integration of simulation models with real machine operations, simplifies development complexity, and has been shown to effectively reduce time for beam commissioning.

xrdPlanner: exploring area detector geometries for powder diffraction and total scattering experiments

xrdPlanner is a software designed to assist in the planning of powder X-ray diffraction and total scattering experiments at synchrotron facilities. It provides a straightforward visualization of projected resolution intervals at different combinations of photon energy and detector geometry, and focus is put on an intuitive and fast presentation to facilitate live exploration of the available parameter space.

ProSPyX: software for post-processing images of X-ray ptychography with spectral capabilities

ProSPyXis a Python intuitive graphical user interface that enables extraction of absorption and phase spectral information from spectral ptychographic datasets.

A differentiable simulation package for performing inference of synchrotron-radiation-based diagnostics

SYRIPY (SYnchrotron Radiation In PYthon) is a new package for modelling the production and propagation of synchrotron radiation. The package has been developed using PyTorch, making it both differentiable and able to leverage the high performance of GPUs.

Optimization of synchrotron radiation parameters using swarm intelligence and evolutionary algorithms

Different algorithms were tested on a synchrotron beamline. Results show that the swarm intelligence algorithm and the particle swarm optimization algorithm perform better than previous algorithms.