Results 331 to 340 of about 11,043,474 (383)

X-Rays and X-Ray Diffraction

2012
X-rays are an electromagnetic radiation of short wavelength, and can be produced by the sudden deceleration of rapidly moving electrons at a target material. If an electron falls through a potential difference of V volt, it acquires an energy eV electron-volt (eV), where e is the charge on an electron.
Mark Ladd, Rex A. Palmer
openaire   +2 more sources

X-ray computed tomography

Machine Learning for Tomographic Imaging, 2019
Computed tomography (CT) is a non-destructive X-ray imaging method, which allows to visualize three-dimensional X-ray absorption properties of an object.
J. Jan
semanticscholar   +1 more source

Demonstration of X-ray Holography with an X-ray Laser

Science, 1987
An x-ray hologram was made by means of an x-ray laser and a laser-quality near normal incidence x-ray mirror. The high brightness and large coherence lengths of x-ray lasers now offer the potential for in vitro three-dimensional high-resolution holographic images of dynamically varying biological microstructures.
David A. Whelan, S. Brown, Dennis L Matthews, James E. Trebes, Gary Stone, D. G. Nilson, E. Michael Campbell   +6 more
openaire   +4 more sources

Tunable isolated attosecond X-ray pulses with gigawatt peak power from a free-electron laser

Nature Photonics, 2019
The quantum-mechanical motion of electrons in molecules and solids occurs on the sub-femtosecond timescale. Consequently, the study of ultrafast electronic phenomena requires the generation of laser pulses shorter than 1 fs and of sufficient intensity to
J. Duris, Siqi Li, T. Driver, E. Champenois, J. Macarthur, A. Lutman, Zhen Zhang, P. Rosenberger, Jeff W. Aldrich, R. Coffee, G. Coslovich, F. Decker, J. Glownia, G. Hartmann, W. Helml, A. Kamalov, J. Knurr, J. Krzywiński, Ming-Fu Lin, J. Marangos, Megan Nantel, A. Natan, Jordan T. O'Neal, N. Shivaram, P. Walter, Anna L. Wang, J. Welch, T. Wolf, Joseph Xu, M. Kling, P. Bucksbaum, A. Zholents, Zhirong Huang, J. Cryan, A. Marinelli   +34 more
semanticscholar   +1 more source

X Rays and X-Ray Regulations

2010
The regulations on the handling of X rays are very similar to the regulations on standard radiation protection. The X-ray regulations in the European Union apply to those X-ray tubes and X-ray installations in which electrons are accelerated at least to 5 keV and in which they are limited to a maximum energy of 1 MeV.
openaire   +2 more sources

X-Ray Astronomy

IEEE Transactions on Nuclear Science, 1964
Although searches so far have been restricted to a few small rockets and balloons, some 40 discrete x-ray sources have already been resolved against a diffuse, nearly isotropic background radiation. The strongest source is about 2000 times as bright as the weakest detectable with present rocket instruments.
openaire   +4 more sources

High-resolution X-ray luminescence extension imaging

Nature, 2021
Xiangyu Ou, Xian Qin, Bolong Huang, Jie Zan, Qinxia Wu, Zhongzhu Hong, Lili Xie, Hongyu Bian, Zhigao Yi, Xiaofeng Chen, Yiming Wu, Xiaorong Song, Juan Li, Qiushui Chen, Huanghao Yang, Xiaogang Liu   +15 more
semanticscholar   +1 more source

[20] Processing of X-ray diffraction data collected in oscillation mode.

Methods in Enzymology, 1997
Z. Otwinowski, W. Minor
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Thermally activated delayed fluorescence (TADF) organic molecules for efficient X-ray scintillation and imaging

Nature Materials, 2021
Wenbo Ma, Yirong Su, Qisheng Zhang, Chao Deng, L. Pasquali, Wenjuan Zhu, Yue Tian, P. Ran, Zeng Chen, Gaoyuan Yang, Guijie Liang, Tianyu Liu, Haiming Zhu, Peng Huang, Haizheng Zhong, Kangwei Wang, Shaoqian Peng, J. Xia, Huafeng Liu, Xu Liu, Y. Yang   +20 more
semanticscholar   +1 more source

Elements of X-ray diffraction

, 1957
B. Cullity, J. Weymouth
semanticscholar   +1 more source