Energy Dependent X-ray Phase-contrast Imaging Using Grating-interferometry IBartl, PDurst, JHaas, WMichel, TRitter, AWeber, TAnton, G
For example, analyzer-based phase contrast imaging has been applied with X-ray energies up to 60 keV3, however, this technique requires a highly parallel X-ray beam with high temporal coherence. Although both the edge illumination technique and grating interferometry have been demonstrated to ...
Left: Energy-resolved iron Kαimage of a SMBH accretion disc that reflects X-ray photons from a corona, shown for a spatial resolution of 0.1μas. It shows a unique map of photon rest energy changes due to Doppler and GR effects. The precise shape of the constant energy contours of the...
Material-selective analysis of spectral X-ray imaging data requires prior knowledge of the energy dependence of the observed signal. Contrary to conventional X-ray imaging, where the material-specific attenuation coefficient is usually precisely known, t
X-ray grating interferometry (XGI) provides substantially increased contrast over conventional absorption-based imaging methods and therefore shows great potential for future biomedical applications. In this work, we propose a single-shot phase retrieval method for synchrotron-based high-energy x-ray ...
X-rayOpticsGrating InterferometryNanocrystals•Low energy X-ray grating interferometry with gratings on low absorbing substrates•Fe2O3nanoparticles can be detected in the dark field signal•New imaging modality was established at the Brazilian Synchrotron Laboratory...
In this work, we propose a single‐shot phase retrieval method for synchrotron‐based high‐energy x‐ray grating interferometry. Contrary to existing retrieval methods, the presented novel approach enables direct retrieval of the object's phase map quantitatively from a single projection image, thus...
High energy X-ray imaging has unique advantage over conventional X-ray imaging, since it enables higher penetration into materials with significantly reduced radiation damage. However, the absorption contrast in high energy region is considerably low due
with their parent ion. We assume that an electron is photo-excited to the conduction band of the liquid at timetion. Following this, the Newtonian equations of motion can be analytically solved to obtain the electron trajectory along the laser polarization axis (x(t), given in atomic units)...
Direct n2 time-resolved interferometry measurements at the wavelength of 1053 nm on SF6 glass and YAG crystal by Moran43 confirmed this 3/2 proportionality term between circular and linear polarizations. Soileau et al. measured the same 3/2 factor on fused silica thanks to optical breakdown ...