Results 11 to 20 of about 1,314,344 (348)

Quantitative atomic cross section analysis by 4D-STEM and EELS.

open access: yesUltramicroscopy
We demonstrate the use of a 4-dimensional scanning transmission electron microscope (4D-STEM) to extract atomic cross section information in amorphous materials.
Shahar Seifer, Lothar Houben, M. Elbaum
semanticscholar   +3 more sources

The quantal calculation of the photo-ionization cross-section of atomic potassium

open access: yesProceedings of the Royal Society of London Series A, Mathematical and Physical Sciences, 1947
D. R. Bates
semanticscholar   +3 more sources

Absolute photoionization cross sections of atomic oxygen [PDF]

open access: yesPhysical Review A, 1985
The absolute values of the photoionization cross sections of atomic oxygen have been measured from the ionization threshold to 120 A. An autoionizing resonance belonging to the 2s2p/sup 4/( /sup 4/P)3p( /sup 3/D/sup o/, /sup 3/S/sup o/, /sup 3/P/sup o/) transition has been observed at 479.43 A; and another line, at 389.97 A.
, Samson, , Pareek
openaire   +2 more sources

Interaction studies and gamma-ray properties of some low-Z materials [PDF]

open access: yesNuclear Technology and Radiation Protection, 2016
In present work we use NaI(Tl) detector in narrow-beam good geometry set-up for the gamma ray attenuation studies of some low-Z materials. The parameters such as mass attenuation coefficients, effective atomic numbers and effective electron ...
Bhosale Rameshwar R.   +3 more
doaj   +1 more source

Prediction of mechanical and radiation parameters of glasses with high Bi2O3 concentration

open access: yesResults in Physics, 2021
This study aims to perform multidirectional characterizations on nuclear shielding efficiencies on some bismuth-based glasses. Accordingly, the γattenuation coefficients for xBi2O3-(75-x)B2O3–25Li2O (x = 0, 10, 20, 30, 40, 50, 60 the 70 mol%) were widely
A. El-Denglawey   +6 more
doaj   +1 more source

Fitting Equation of K-Shell Cross Section of Mg and Fe Atoms [PDF]

open access: yesمجلة التربية والعلم, 2013
: An analytical formalism is suggested to describe the K shell ionization cross section for two atomic elements Mg (z=12) and Fe (z=26) by electron impact. This study is essentially based on the analysis of the calculated K ionization cross section given
Zeyad T. Ahmed Department Physics
doaj   +1 more source

DETERMINATION OF RADIATION SHIELDING PARAMETERS OF COCRFENITIALX ALLOYS BY USING RECENTLY DEVELOPED PHY-X/PSD AND EPIXS SOFTWARES

open access: yesJournal of Amasya University the Institute of Sciences and Technology, 2022
We calculate the radiation shielding parameters of CoCrFeNiTiAlx alloys which consist of mass attenuation coefficient, linear attenuation coefficient, mean free path, half-value layer, total atomic cross section, effective atomic number and effective ...
Nurettin Arpac, Murat Aygun
doaj   +1 more source

Positronium collisions with rare-gas atoms [PDF]

open access: yes, 2015
We calculate elastic scattering of positronium (Ps) by the Xe atom using the recently developed pseudopotential method [I. I. Fabrikant and G. F. Gribakin, Phys. Rev. A 90, 052717 (2014)] and review general features of Ps scattering from heavier rare-gas
Fabrikant, I. I.   +3 more
core   +2 more sources

Electron impact scattering from pentane molecules and effect of isomerism on cross section

open access: yesChemical Physics Impact, 2021
In the present article, electron scattering cross sections for n-pentane and its isomers, viz., isopentane (butane-2-methyl), and neopentane (propane-2-2-dimethyl) are reported.
Himani Tomer   +3 more
doaj   +1 more source

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