Results 21 to 30 of about 5,609,446 (239)
Diffractive small angle X-ray scattering imaging for anisotropic structures
Nature Communications, 2019 Mesoscale investigations of material microarchitecture using small angle X-ray scattering (SAXS) methods have been limited by long measurement times. Here, the authors present an X-ray diffractive optics method which enables single shot acquisition of ...
Matias Kagias +7 more
doaj +1 more source
Self-absorption correction on 2D X-ray fluorescence maps
Scientific Reports, 2023 X-ray fluorescence mapping (XRF) is a highly efficient and non-invasive technique for quantifying material composition with micro and nanoscale spatial resolutions.
Mingyuan Ge +3 more
doaj +1 more source
The CLEAR X-ray emission spectrometer available at the CLAESS beamline of ALBA synchrotron
Journal of Synchrotron Radiation, 2023 The CLEAR X-ray emission spectrometer installed at the CLAESS beamline of the ALBA synchrotron is described. It is an energy-dispersive spectrometer based on Rowland circle geometry with 1 m-diameter circle.
L. Simonelli +7 more
doaj +1 more source
Selenium single-wavelength anomalous diffraction de novo phasing using an X-ray-free electron laser
Nature Communications, 2016 X-ray free electron lasers are increasingly available for use in macromolecular structure determination. Here, the authors describe the successful use of selenium single-wavelength anomalous diffraction data to calculate experimentally derived phases.
Mark S. Hunter +20 more
doaj +1 more source
Quadrupolar magnetic excitations in an isotropic spin-1 antiferromagnet
Nature Communications, 2022 Multipolar magnetic excitations are challenging to measure as most experimental probes are sensitive to dipolar processes. Here, Nag et al. show the existence of dispersing quadrupolar components to the spin excitations in an antiferromagnet ...
A. Nag +7 more
doaj +1 more source
A Contrast Calibration Protocol for X-ray Speckle Visibility Spectroscopy
Applied Sciences, 2021 X-ray free electron lasers, with their ultrashort highly coherent pulses, opened up the opportunity of probing ultrafast nano- and atomic-scale dynamics in amorphous and disordered material systems via speckle visibility spectroscopy.
Yanwen Sun +13 more
doaj +1 more source
Absence of a pressure gap and atomistic mechanism of the oxidation of pure Co nanoparticles
Nature Communications, 2023 3d transition metal nanoparticles are of interest in fields ranging from spintronics, catalysis, and biomedicine. This paper provides a detailed picture of the oxidation of cobalt nanoparticles and benchmarks the development of models for the metal ...
Jaianth Vijayakumar +9 more
doaj +1 more source
An integrated source of broadband quadrature squeezed light [PDF]
, 2015 An integrated silicon nitride resonator is proposed as an ultra-compact source of bright single-mode quadrature squeezed light at 850 nm. Optical properties of the device are investigated and tailored through numerical simulations, with particular ...
Andersen, Ulrik L. +2 more
core +2 more sources
The GEO600 squeezed light source
, 2010 The next upgrade of the GEO600 gravitational wave detector is scheduled for 2010 and will, in particular, involve the implementation of squeezed light.
Alexander Khalaidovski +14 more
core +4 more sources
Absolute Calibration of a Large-diameter Light Source [PDF]
, 2013 A method of absolute calibration for large aperture optical systems is presented, using the example of the Pierre Auger Observatory fluorescence detectors.
Brack, J. T. +6 more
core +2 more sources