Results 41 to 50 of about 11,275,154 (385)

Operational experience with Adaptive Gain Integrating Pixel Detectors at European XFEL

open access: yesFrontiers in Physics
The European X-ray Free Electron Laser (European XFEL) is a cutting-edge user facility that generates per second up to 27,000 ultra-short, spatially coherent X-ray pulses within an energy range of 0.26 to more than 20 keV.
Jolanta Sztuk-Dambietz   +27 more
doaj   +1 more source

Visualization of internal 3D structure of small live seed on germination by laboratory-based X-ray microscopy with phase contrast computed tomography

open access: yesPlant Methods, 2020
Background The visualization of internal 3D-structure of tissues at micron resolutions without staining by contrast reagents is desirable in plant researches, and it can be achieved by an X-ray computed tomography (CT) with a phase-retrieval technique ...
Naoki Kunishima   +5 more
doaj   +1 more source

X-ray reflection in a sample of X-ray bright Ultraluminous X-ray sources

open access: yes, 2009
We apply a reflection-based model to the best available XMM-Newton spectra of X-ray bright UltraLuminous X-ray (ULX) sources (NGC 1313 X-1, NGC 1313 X-2, M 81 X-6, Holmberg IX X-1, NGC 5408 X-1 and Holmberg II X-1).
A. C. Fabian   +52 more
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

Impact of the pathogenetic type of postmenopause on the occurrence of tumors of the female reproductive system

open access: yesОпухоли женской репродуктивной системы, 2014
The study included patients observed and treated in Russian scientific centre of roentgenradiology Ministry of Health Russian Federation in the period from 1999 to 2010 (n = 405): including 111 postmenopausal women who are without anamnestic data on the ...
L. A. Ashrafyan   +5 more
doaj   +1 more source

Determination of X-ray detection limit and applications in perovskite X-ray detectors

open access: yesNature Communications, 2021
X-ray detection limit and sensitivity are important figure of merits for perovskite X-ray detectors, but literatures lack a valid mathematic expression for determining the lower limit of detection for a perovskite X-ray detector. In this work, we present
L. Pan   +4 more
semanticscholar   +1 more source

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 sources as tracers of the large-scale structure in the Universe

open access: yes, 2000
We review the current status of studies of large-scale structure in the X-ray Universe. After motivating the use X-rays for cosmological purposes, we discuss the various approaches used on different angular scales including X-ray background multipoles ...
Barcons, X.   +3 more
core   +2 more sources

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

X-ray observations of Be/X-ray binaries in the SMC

open access: yes, 2003
(shortened) Fifteen Be/X-ray binaries and candidates in the SMC were observed serendipitously with the EPIC instruments of XMM-Newton during two observations of SNR 0047-73.5 and SNR 0103-72.6 in October 2000.
Apparao   +56 more
core   +1 more source

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