Results 21 to 30 of about 3,432,026 (297)

BAT X-ray Survey - III: X-ray Spectra and Statistical Properties [PDF]

open access: yes, 2007
In this concluding part of the series of three papers dedicated to the Swift/BAT hard X-ray survey (BXS), we focus on the X-ray spectral analysis and statistical properties of the source sample.
A. Rau   +22 more
core   +2 more sources

Multi-beam X-ray ptychography using coded probes for rapid non-destructive high resolution imaging of extended samples

open access: yesScientific Reports, 2022
Imaging large areas of a sample non-destructively and with high resolution is of great interest for both science and industry. For scanning coherent X-ray diffraction microscopy, i. e., ptychography, the achievable scan area at a given spatial resolution
Mikhail Lyubomirskiy   +9 more
doaj   +1 more source

X-ray mirrors with sub-nanometre figure errors obtained by differential deposition of thin WSi2 films

open access: yesJournal of Synchrotron Radiation, 2023
Differential deposition by DC magnetron sputtering was applied to correct for figure errors of X-ray mirrors to be deployed on low-emittance synchrotron beamlines. During the deposition process, the mirrors were moved in front of a beam-defining aperture
Patrice Bras   +5 more
doaj   +1 more source

Microstructural evolution during sintering of copper particles studied by laboratory diffraction contrast tomography (LabDCT)

open access: yesScientific Reports, 2017
Pressureless sintering of loose or compacted granular bodies at elevated temperature occurs by a combination of particle rearrangement, rotation, local deformation and diffusion, and grain growth.
S. A. McDonald   +5 more
doaj   +1 more source

The growth of interest for astronomical X-ray polarimetry

open access: yes, 2018
Astronomical X-ray polarimetry was first explored in the end of the 60's by pioneering rocket instruments. The craze arising from the first discoveries on stellar and supernova remnant X-ray polarization led to the addition of X-ray polarimeters on-board
Marin, F.
core   +1 more source

A variable near-infrared counterpart to the neutron-star low-mass X-ray binary 4U 1705-440 [PDF]

open access: yes, 2008
We report the discovery of a near-infrared (nIR) counterpart to the persistent neutron-star low-mass X-ray binary 4U 1705-440, at a location consistent with its recently determined Chandra X-ray position.
Andrew J. Young   +26 more
core   +2 more sources

Evaluation of methods for 3D imaging and analysis of vascularisation in biopreparations

open access: yesCurrent Directions in Biomedical Engineering, 2022
Motivation: Within the field of bio-implants one topic deals with the in-vitro production of 3D tissues from cell cultures. A major challenge in the cultivation of biopreparations is the imitation of the vascular system with its surrounding tissue ...
Zöller Nora   +9 more
doaj   +1 more source

X-ray luminescence computed tomography using a focused X-ray beam

open access: yes, 2017
Due to the low X-ray photon utilization efficiency and low measurement sensitivity of the electron multiplying charge coupled device (EMCCD) camera setup, the collimator based narrow beam X-ray luminescence computed tomography (XLCT) usually requires a ...
Li, Changqing   +3 more
core   +2 more sources

Soft and Supersoft X-ray Sources in Symbiotic Stars [PDF]

open access: yes, 2009
Assuming that soft X-ray sources in symbiotic stars result from strong thermonuclear runaways, and supersoft X-ray sources from weak thermonuclear runaways or steady hydrogen burning symbiotic stars, we investigate the Galactic soft and supersoft X-ray ...
Lu, Guoliang   +3 more
core   +1 more source

X-ray beam diagnostics at the MID instrument of the European X-ray Free-Electron Laser Facility

open access: yesJournal of Synchrotron Radiation
The Materials Imaging and Dynamics (MID) instrument at the European X-ray Free-Electron Laser Facility (EuXFEL) is equipped with a multipurpose diagnostic end-station (DES) at the end of the instrument.
Ulrike Boesenberg   +19 more
doaj   +1 more source

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