Results 21 to 30 of about 1,314,344 (348)

Theory of x-ray absorption by laser-dressed atoms [PDF]

, 2006
An ab initio theory is devised for the x-ray photoabsorption cross section of atoms in the field of a moderately intense optical laser (800nm, 10^13 W/cm^2).
A. Szabo, Christian Buth, D. P. Craig, E. Merzbacher, F. Ehlotzky, F. Herman, G. Arfken, G. Ferrante, H. A. Bethe, J. Als-Nielsen, J. J. Moré, J. J. Sakurai, K. J. Bathe, K. J. Bathe, M. O. Krause, M. V. Ammosov, N. B. Delone, N. Moiseyev, Robin Santra, V. I. Kukulin   +19 more
core   +4 more sources

Analytical approximation of cross sections of collisions of electrons with atoms of inert gases

Physical Sciences and Technology, 2021
The paper presents an analysis of data on the cross sections of elastic and inelastic collisions of electrons with noble gas atoms. The transport (diffusion) cross section, the excitation and ionization cross sections are considered. The bibliography on
R. I. Golyatina, S. A. Maiorov
doaj  

Excitation of the 2P State of Atomic Hydrogen by Electron Impact

Atoms, 2022
The excitation cross sections of the 2P state of atomic hydrogen at low incident electron energies (from 0.755 to 3.5 Ry) were calculated using the variational polarized orbital method.
Anand K. Bhatia
doaj   +1 more source

Derivations of Atomic Ionization Effects Induced by Neutrino Magnetic Moments [PDF]

, 2010
A recent paper [M.B. Voloshin, Phys. Rev. Lett. 105, 201801 (2010)] pointed out that our earlier derivations of atomic ionization cross-section due to neutrino magnetic moments (arXiv:1001.2074v2) involved unjustified assumptions.
B. Kayser, F. Halzen, H. Bichsel, Hau-Bin Li, Henry T. Wong, M. B. Voloshin, M. B. Voloshin, P. Vogel, Shin-Ted Lin, W. Greiner   +9 more
core   +1 more source

Recommended Positron Scattering Cross Sections for Atomic Systems

Journal of Physical and Chemical Reference Data, 2019
We present a critical analysis of available experimental and theoretical cross section data for positron scattering from atomic systems. From this analysis, we present (where data are available) recommended cross sections for total scattering ...
K. Ratnavelu, M. Brunger, S. Buckman
semanticscholar   +1 more source

Atomic photoionization cross sections beyond the electric dipole approximation [PDF]

The Journal of Chemical Physics, 2019
A methodology is developed to compute photoionization cross sections beyond the electric dipole approximation from response theory, using Gaussian type orbitals and plane waves for the initial and final states, respectively. The methodology is applied to compute photoionization cross sections of atoms and ions from the first four rows of the periodic ...
Iulia Emilia Brumboiu, Olle Eriksson, Patrick Norman   +2 more
openaire   +3 more sources

Investigation of gamma-ray attenuation parameters of some materials used in dental applications

Results in Physics, 2019
Radiological parameters of composite filler, zirconium and acrylic coating materials used in dental treatment are determined. Mass attenuation coefficients (μm) of these materials have been experimentally determined for 9 different gamma energies ...
Nigar Abbasova, Zeynep Yüksel, Elchin Abbasov, Hasan Gülbiçim, Mustafa Çağatay Tufan   +4 more
doaj   +1 more source

Zeeman Relaxation of Cold Atomic Iron and Nickel in Collisions with 3He [PDF]

, 2010
We have measured the ratio of the diffusion cross-section to the angular momentum reorientation cross-section in the colliding Fe-3He and Ni-3He systems.
Bonna Newman, Cort Johnson, Daniel Kleppner, J. B. Hasted, John M. Doyle, Nathan Brahms, P. R. Bevington, Thomas J. Greytak, W. Demtroder   +8 more
core   +2 more sources

Two- and Three-Photon Partial Photoionization Cross Sections of Li+, Ne8+ and Ar16+ under XUV Radiation

Applied Sciences, 2017
In this work, we present the photon energy dependence of the two- and three-photon cross sections of the two-electron Li+, Ne8+ and Ar16+ ions, following photoionization from their ground state.
William Hanks, John T. Costello, Lampros A.A. Nikolopoulos   +2 more
doaj   +1 more source

An investigation of the nuclear shielding effectiveness of some transparent glasses manufactured from natural quartz doped lead cations

Nuclear Engineering and Technology, 2021
The influence of lead cations on natural quartz (QZ) from Egypt as a glass shielding material for the composition with nominal formula (10Na2O - (90 - x) QZ – xPbO (where x = 30, 35, 40, 45 and 50 mol %)) was examined. The studied samples are synthesized
Said M. Kassem, G.S.M. Ahmed, A.M. Rashad, S.M. Salem, S. Ebraheem, A.G. Mostafa   +5 more
doaj   +1 more source