Results 21 to 30 of about 1,142,188 (336)

Alpha- quartz quantitative X ray diffraction analysis

open access: yesMateriales de Construccion, 1967
Not ...
J. L. Sagrera
doaj   +1 more source

Ultrafast X-ray diffraction

open access: yes, 2005
This study presents recent developments and applications of ultrafast X-ray diffraction. These include optical pump/X-ray probe experiments for performing ultrafast X-ray spectroscopy, time-resolved X-ray diffraction for the investigation of electronically induced solid-liquid phase transformations in semiconductors, and time-resolved X-ray diffraction
Sokolowski-Tinten, Klaus   +9 more
openaire   +3 more sources

Advantages of Using Hard X-ray Photons for Ultrafast Diffraction Measurements

open access: yesPhotonics, 2023
We present a comparative theoretical study of silicon crystals irradiated with X-ray free-electron laser pulses, using hard X-ray photons of various energies.
Vladimir Lipp, Ichiro Inoue, Beata Ziaja
doaj   +1 more source

Subpicosecond X-ray diffraction

open access: yesLaser and Particle Beams, 1994
With the advent of ultrashort (subpicosecond) high-power lasers it is now possible to create intense bursts of X-rays with subpicosecond durations. An analysis of the temporal response of diffraction of such X-rays by crystals in both the dynamical and kinematic regime is presented. It is also shown that under certain conditions the temporal resolution
Wark, J, He, H
openaire   +2 more sources

A green and efficient protocol for the synthesis of dihydropyrano[2,3-c]pyrazole derivatives via a one-pot, four component reaction by grinding method

open access: yesJournal of Advanced Research, 2015
An efficient grinding protocol for the synthesis of dihydropyrano[2,3-c]pyrazole derivatives from acetylene ester, hydrazine hydrate, aryl aldehydes and malononitrile under solvent free conditions has been achieved with excellent yields.
Sethurajan Ambethkar   +2 more
doaj   +1 more source

Gas gun shock experiments with single-pulse x-ray phase contrast imaging and diffraction at the Advanced Photon Source

open access: yes, 2012
The highly transient nature of shock loading and pronounced microstructure effects on dynamic materials response call for {\it in situ}, temporally and spatially resolved, x-ray-based diagnostics.
B. J. Jensen   +9 more
core   +1 more source

X-Ray Diffraction [PDF]

open access: yesNature, 1971
Interpretation of X-ray Powder Diffraction Patterns . By H. Lipson and H. Steeple. Pp. viii + 335 + 3 plates. (Mac-millan: London; St Martins Press: New York, May 1970.) £4.
openaire   +2 more sources

Dataset of asymmetric intramolecular [4+3] cycloaddition reactions catalyzed by NHC-gold(I) complexes

open access: yesData in Brief, 2019
The shared data is the unpublished portion of the experimental section for the article with the title “NHC–Au(I) catalyzed enantioselective intramolecular [4 + 3] cycloaddition of furan propargyl esters”.[1] The preparation of the intermediates for ...
Ruoyu Ma   +3 more
doaj   +1 more source

X-ray Raman scattering study of aligned polyfluorene [PDF]

open access: yes, 2006
We present a non-resonant inelastic x-ray scattering study at the carbon K-edge on aligned poly[9,9-bis(2-ethylhexyl)-fluorene-2,7-diyl] and show that the x-ray Raman scattering technique can be used as a practical alternative to x-ray absorption ...
Ankudinov A. L.   +38 more
core   +2 more sources

Impact of ultrafast electronic damage in single particle x-ray imaging experiments

open access: yes, 2012
In single particle coherent x-ray diffraction imaging experiments, performed at x-ray free-electron lasers (XFELs), samples are exposed to intense x-ray pulses to obtain single-shot diffraction patterns.
E. Weckert   +7 more
core   +1 more source

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