Results 51 to 60 of about 524,505 (250)

X-Ray Fluorescence Experiments with Polarized X Rays [PDF]

Advances in X-ray Analysis, 1974
AbstractTwo methods of obtaining polarized x-rays for fluorescence experiments are discussed. Compton scattering from a low-Z scatterer is the usual method used in such experiments. The polarization of x-rays undergoing anomalous Borrmann transmission in a dislocation-free crystal is also described and preliminary results are presented.
Howell, R.H., Pickles, W.L., Cate, J.L. Jr.   +2 more
openaire   +1 more source

X-Ray Fluorescence Computed Tomography With Polycapillary Focusing

IEEE Access, 2014
Liposomal iodine nanoparticles (LINPs) have a long half-life and provide an excellent intravascular contrast. The nanoparticles can be functionalized as molecular probes for biological targets to facilitate numerous preclinical studies for translation ...
Wenxiang Cong, Yan Xi, Ge Wang
doaj   +1 more source

Laser-based X-ray and electron source for X-ray fluorescence studies

, 2016
In this work we present a modification to conventional X-rays fluorescence using electrons as excitation source, and compare it with the traditional X-ray excitation for the study of pigments.
Brozas, F. Valle, Conde, A. Peralta, Crego, A., Roso, L.   +3 more
core   +1 more source

Research on X-ray Fluorescence Enhanced Fluoroscopy Imaging Technology

Photonics, 2021
Chest X-ray fluoroscopy is a commonly used medical imaging method, which has a wide range of applications in the diagnosis of lung diseases and other fields.
Zhenyao Yan, Liang Li, Rui Qiu, Zhiqiang Chen   +3 more
doaj   +1 more source

X-ray fluorescence spectra of metals excited below threshold

, 2003
X-ray scattering spectra of Cu and Ni metals have been measured using monochromatic synchrotron radiation tuned from far above to more than 10 eV below threshold.
Föhlisch, A., Magnuson, M., Mårtensson, N., Nilsson, A., Rubensson, J. -E., Wassdahl, N.   +5 more
core   +1 more source

Relativistic calculations of the x-ray emission following the Xe-Bi$^{83+}$ collision [PDF]

, 2014
We study the x-ray emission following the collision of a Bi$^{83+}$ ion with a neutral Xe atom at the projectile energy 70 MeV/u. The collisional and post-collisional processes are treated separately.
Gumberidze, A., Hagmann, S., Kozhedub, Y. S., Plunien, G., Shabaev, V. M., Stöhlker, Th., Tupitsyn, I. I.   +6 more
core   +2 more sources

Filling quantification of capillary target using X-Ray radiography and X-Ray fluorescence.

e-Journal of Nondestructive Testing
As part of the simulation program, the Laser Mégajoule (LMJ) was created to allow the reproduction of the physical conditions of nuclear fusion by heating and compressing matter with laser. This laser is focused on a millimeter-sized target.
Léna Rigny, Romain Capiau, Alexandre Royer   +2 more
doaj   +1 more source

The origin and chronology of medieval silver coins based on the analysis of chemical composition

Nukleonika, 2015
Medieval Central Europe coins - the Saxon coins, also called as the Otto and Adelheid denarii, as well as the Polish ones, the Władysław Herman and Bolesław Śmiały coins - were examined to determine their provenance and dating.
Pańczyk Ewa, Sartowska Bożena, Waliś Lech, Dudek Jakub, Weker Władysław, Widawski Maciej   +5 more
doaj   +1 more source

Experimental Demonstration of X-Ray Fluorescence CT Using a Spatially Distributed Multi-Beam X-Ray Source

Frontiers in Physics, 2020
X-ray fluorescence computed tomography (XFCT) is a high-sensitivity imaging modality for high-atomic elements such as gadolinium (Gd) or gold (Au). In order to improve the contrast of x-ray fluorescence (XRF) signals in the raw projection data, common ...
Zhiqiang Chen, Zhiqiang Chen, Siyuan Zhang, Siyuan Zhang, Liang Li, Liang Li   +5 more
doaj   +1 more source

Penetrating the Deep Cover of Compton Thick Active Galactic Nuclei [PDF]

, 2006
We analyze observations obtained with the Chandra X-ray Observatory of bright Compton thick active galactic nuclei (AGNs), those with column densities in excess of 1.5 x 10^{24} cm^{-2} along the lines of sight.
Antonucci R., Awaki H., Bergvall N., Comastri A., de Grijp M. H. K., Diaz A. I., Ghisellini G., Gonzalez Delgado R. M., J. H. Krolik, K. A. Weaver, Koyama K., Magdziarz P., Maiolino R., Mewe R., Mewe R., N. A. Levenson, Nandra K., P. T. Życki, Risaliti G., Setti G., T. M. Heckman   +20 more
core   +3 more sources