Results 271 to 280 of about 225,000 (312)

Quantity and Quality of Scattered X Rays

The British Journal of Radiology, 1961
The paper presents measurements of the amount and quality of radiation scattered from materials of different atomic numbers. At all energies of the primary X-ray beam used, low atomic number materials scatter the greatest quantity of radiation, the differences in the normal deep therapy range being large.
J H, MARTIN, G M, MULLER
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X-Ray Resonance Exchange Scattering

Physical Review Letters, 1988
Large resonant magnetization-sensitive x-ray scattering is predicted to occur in the vicinity of the L/sub II/, L/sub III/, and M/sub II/--M/sub V/ absorption edges in the rare-earth and actinide elements, and at the K and L edges in the transition elements.
, Hannon, , Trammell, , Blume, , Gibbs
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Nonresonant Inelastic X-ray Scattering and X-ray Raman Scattering

2016
In analogy to the connections between Raman scattering and absorption in the optical regime, X-ray Raman scattering (XRS) is an alternative to X-ray absorption spectroscopy, particularly for sub-keV excitations. XRS is the nonresonant inelastic X-ray scattering (NIXS, or NRIXS) from core or semi-core electrons and has a similar energy-dependence as X ...
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X‐ray scatter removal by deconvolution

Medical Physics, 1988
The distribution of scattered x rays detected in a two‐dimensional projection radiograph at diagnostic x‐ray energies is measured as a function of field size and object thickness at a fixed x‐ray potential and air gap. An image intensifier–TV based imaging system is used for image acquisition, manipulation, and analysis. A scatter point spread function
J A, Seibert, J M, Boone
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X-Ray Scattering

1984
There are two main methods for investigating the structure of solids. They are X-ray structure analysis (study of X-ray diffraction and scattering) and microscopic investigation. The first method is rather general, i.e., it can study the atomic and molecular structure of matter and also study the microstructures of heterophase systems.
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Multiple Scattering and the Polarization of X-rays

Advances in X-ray Analysis, 1980
In order to improve the overall performance of energy dispersive x-ray secondary emission spectrometry one can make use of polarized x-rays. We have used polarized x-rays produced by 90° scattering to reduce the background intensity due to the primary x-ray source.An effort has been made to optimize the polarizing scatterer for the elements being ...
John D. Zahrt, Richard Ryon
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X-ray holography with an atomic scatterer

Ultramicroscopy, 2016
X-ray holography scheme with reference scatterer consisting of heavy atom as reference center and its link to an object consisting of several light atoms and using controlled variation of the alignment is represented. The scheme can reproduce an object in three dimensions with atomic resolution. The distorting factors of reconstruction are considered.
A A, Mityureva, V V, Smirnov
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Scattering of X-Rays

1979
An X-ray beam that passes through an absorber is attenuated. The degree of attenuation depends upon both photoabsorption and scattering processes. Scattering occurs when an X-ray photon interacts with one of the electrons of the absorbing element. If this collision is elastic (no energy is lost in the collision process), the scattering is said to be ...
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X-Ray Diffraction and Small Angle X-Ray Scattering

2012
General Introduction Theoretical Approaches MOLECULAR SPECTROSCOPY Infrared Spectroscopy Raman Spectroscopy Electronic Spectroscopy (UV-Vis) Photoluminescence Spectroscopy Neutron Scattering SFG, FM/IRAS LOCAL SPECTROSCOPY Nuclear Magnetic Resonance Electron Paramagnetic Resonance Mössbauer Spectroscopy LEIS and SIMS (TOF SIMS) EXAFS and XANES AES, XPS
Behrens, Malte, Schlögl, Robert
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X-Ray Resonant Inelastic Scattering

1995
With the advent of synchrotron radiation sources, characterised by high fluxes, tunability and polarisation control, the inelastic scattering of x rays has become a powerful probe of ground-state properties and elementary excitations in solids.
Carra, P., Fabrizio, M.
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