Results 91 to 100 of about 3,653 (216)

Structured illumination for surface‐resolved grazing‐incidence X‐ray scattering

open access: yesJournal of Synchrotron Radiation, EarlyView.
We introduce a method combining structured illumination with grazing‐incidence X‐ray scattering and computational imaging to resolve local structural details. Demonstrated on an organic semiconductor thin film, this method captures local features without sample rotation, enabling detailed analysis of material properties critical for advanced material ...
Doğa Gürsoy   +5 more
wiley   +1 more source

Teaching about the relativistic background of synchrotron radiation: some intriguing aspects with strong didactic implications

open access: yesJournal of Synchrotron Radiation, EarlyView.
Explaining synchrotron radiation properties often requires using the speed of light with respect to a moving object like a detector, which may not be the invariant c. This surprising fact also leads to a rarely explored link between relativity and quantum mechanics.Not fully grasping the concepts of relativity can lead to misunderstandings about the ...
G. Margaritondo
wiley   +1 more source

A beam‐direction cross‐vessel metrology method and error analysis for the ptychography setup at HEPS ID09

open access: yesJournal of Synchrotron Radiation, EarlyView.
A beamline‐direction cross‐vessel metrology method and error analysis for ptychography setup at HEPS ID09 is proposed and implemented. A 12.3 nm reconstruction resolution of ptychography demonstrates the validity of metrology.A metrology method dedicated to position monitoring and correction for the ptychography setup at the High Energy Photon Source ...
Ruiying Liao   +10 more
wiley   +1 more source

Time-resolved serial synchrotron and serial femtosecond crystallography of heme proteins using photocaged nitric oxide

open access: yesIUCrJ
Time-resolved X-ray crystallography is undergoing a renaissance due to the development of serial crystallography at synchrotron and XFEL beamlines. Crucial to such experiments are efficient and effective methods for uniformly initiating time-dependent ...
Peter Smyth   +20 more
doaj   +1 more source

Ultrafast time‐resolved X‐ray absorption spectroscopy at FemtoMAX beamline

open access: yesJournal of Synchrotron Radiation, EarlyView.
A new setup for femtosecond resolution X‐ray absorption spectroscopy with energy ranging from 2 to 15 keV is established.We report on the development and first experiments at a new X‐ray absorption spectroscopy (XAS) endstation at the FemtoMAX beamline of the MAX IV Laboratory.
Van-Thai Pham   +16 more
wiley   +1 more source

Structures and Crystal Chemistry of Carbonate at Earth's Mantle Conditions

open access: yesGeophysical Monograph Series, Page 87-95., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Marco Merlini   +2 more
wiley  

+1 more source

The prototype DynamiX camera system – a high‐frame‐rate high‐dynamic‐range hard X‐ray integrating detector for fourth‐generation synchrotrons

open access: yesJournal of Synchrotron Radiation, EarlyView.
This paper presents the first results from the DynamiX X‐ray imaging detector developed by the UK's Science and Technology Facilities Council for a new generation of photon light sources. Operating at a continuous frame rate of 534 kHz and with a per‐pixel per‐frame dynamic range of roughly five orders of magnitude, this work is the first step in ...
Simon Knowles   +25 more
wiley   +1 more source

A high‐energy X‐ray beamline for materials science research at SPring‐8: BL15XU

open access: yesJournal of Synchrotron Radiation, EarlyView.
The Japanese synchrotron facility SPring‐8 has recently relaunched BL15XU as a high‐energy X‐ray beamline for materials science research. A comprehensive description of the technical details and science cases is presented.The high‐energy X‐ray beamline BL15XU is designed to drive advancements in materials science and high‐pressure research by ...
Hiroyuki Ohsumi   +17 more
wiley   +1 more source

A real‐time correction method for sample drift in STXM based on Fourier transform image registration

open access: yesJournal of Synchrotron Radiation, EarlyView.
This study proposes an online drift‐correction method for scanning transmission X‐ray microscopy that integrates Fourier‐transform image registration with laser‐interferometer feedback, suppressing sample drift in a 100‐image stack scan from over 1 mm to below 120 nm and thereby eliminating redundant scan area while markedly enhancing experimental ...
Yuchen Jiao   +10 more
wiley   +1 more source

Fine‐tuning ab initio XANES spectra calculations using the Bayesian optimization algorithm

open access: yesJournal of Synchrotron Radiation, EarlyView.
A Bayesian optimization technique is used to tune the FEFF and FDMNES packages and to improve matching between theoretical and experimental spectra. The tests were performed on monometallic Ni, Fe and Pd K‐edge XANES spectra using several different spectrum similarity metrics.Theoretical modeling of X‐ray absorption near‐edge structure (XANES) spectra ...
Andrey A. Sapronov   +2 more
wiley   +1 more source

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