Results 171 to 180 of about 253 (210)

Charge Exchange and Ionization in Ion-Atom Collisions

1982
The general theory of charge exchange in atom-atom and ion-atom collisions is examined at the various levels of approximation that are made possible by comparing collision energies and typical electron binding energies.
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Analytical approximations to the rate coefficients for charge exchange and ionization of neutral beams

Nuclear Fusion, 1979
Analytic expressions are used to approximate the cross-section data for charge exchange between hydrogen isotopes and between a neutral hydrogen isotope and a helium isotope ion, and for ionization of hydrogen isotope neutrals by positive ions and by electrons.
D.L. Galbraith, T. Kammash
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Ionization, charge exchange, and excitation in F + Ar and F + Kr collisions

Physical Review A, 1976
We have measured projectile and target x-ray cross sections for F + Ar and F + Kr collisions using fluorine beams of charge states 7+, 8+, and 9+ with energies from 20 to 76 MeV. Pronounced enhancements for the Ar K and Kr L vacancy cross sections using F9+ ions compared to those for the 7+ projectile can be explained by charge exchange as described by
Forrest Hopkins, Rudiger Brenn, Anthony R. Whittemore, Nelson Cue, Vince Dutkiewicz, R. P. Chaturvedi   +5 more
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Ionization, charge exchange, and excitation during collisions of sodium ions with argon

Technical Physics, 2007
The absolute values of cross sections of ionization, charge exchange, and excitation during Na+-Ar collisions are measured in the ion energy range 0.5–10.0 keV. Experiments are performed by a modified method of transverse electric field and by the optical spectrometry method.
R. A. Lomsadze, M. R. Gochitashvili, R. V. Kvizhinadze, N. O. Mosulishvili, S. V. Bobashev   +4 more
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Remarks on stability in charge exchange dynamics in a monoatomic ionized gas

Transport Theory and Statistical Physics, 1988
Abstract We prove existence and uniqueness of a couple of nonnegative distributions for an evolution problem modelling the interactions of ions and neutral atoms with charge exchange. Some remarks on asymptotic behaviour are added.
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Analysis of isomeric polycyclic aromatic hydrocarbons by charge-exchange chemical ionization mass spectrometry

Analytical Chemistry, 1984
Charge-exchange chemical ionization mass spectrometry (using a 15% mixture of methane in argon) yields abundant M/sup +/, M + H/sup +/, M + C/sub 2/H/sub 5//sup +/ ions of polycyclic aromatic hydrocarbons (PAH). On the basis of the relative intensities of the M + H/sup +/ ion to the M/sup +/ ion, this technique can differentiate, in a predictable ...
W J, Simonsick, R A, Hites
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XXXIII. Ionization and charge exchange by fast ions of hydrogen and helium

The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1949
Abstract An account is given of experiments involving collisions of H+, H+ 2. and He+ ions with hydrogen and helium in the energy range 3–35 KeV. The construction of apparatus for producing suitable beams of ions is described and details presented of an accurate method for measuring charge exchange and ionization cross-sections.
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Carbon disulfide charge exchange as a low-energy ionization technique for hydrocarbon characterization

Analytical Chemistry, 1993
CS 2 .+ ions formed under low-energy electron ionization conditions readily undergo charge-exchange reactions with hydrocarbons having ionization potential less than 9.5 eV. CS 2 charge exchange (CS 2 /CE) has many advantages over low-voltage electron-impact ionization (LV/EI) in the characterization of hydrocarbons.
Chang S. Hsu, Kuangnan. Qian
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Cross Sections for Charge Exchange and Ionization of High-Energy Ions in Noble Gases

Fusion Science and Technology, 2007
Interactions of charge exchange and ionization of fast, low-charged heavy ions are very important in heavy ion beam inertial confinement fusion. These effects are crucial in determination of the final focusing in the chamber. However, corresponding cross section data is very limited and/or not accurate over the entire range of energies and ions of ...
L. Wu, H. Momota, G. H. Miley
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Theory of Charge Exchange and Ionization in Ion-Atom (Ion) Collisions

1986
The present review will deal with the theoretical methods for study of single electron transfer and ionization processes in ion-atom and ion-ion collisions, $$ A + {B^{{{q^{ + }}}}} \to {A^{ + }} + {B^{{\left( {q - 1} \right) + }}}\quad ,\quad q \geqslant 1 $$ (1.1a) $$ \to {A^{ + }} + {B^{{\left( {q^{ + }} + e \right)}}} ]$$ (1.1b)
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