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Atomic processes in astrophysics
Astrophysics and Space Science, 1996We review the atomic processes responsible for astrophysical emission line spectra, paying particular attention to the reliability of the rates used to determine the physical conditions in the emitting gas. We discuss particular cases where often-neglected processes play important roles.
John C. Raymond, Nancy S. Brickhouse
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Atom-formation processes in carbon-furnace atomizers used in atomic-absorption spectrometry
Talanta, 1974A mechanism for the production of atoms during carbon-furnace atomization is presented, based on the reaction MO(s) + C(s) --> CO(g) + M(g) The lowest temperature at which this reaction is thermodynamically feasible has been calculated for 27 elements and is shown to be consistent, for the majority of elements, with the lowest temperatures at which a ...
W C, Campbell, J M, Ottaway
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Electrochemical Atomic Layer Processing
Materials and Manufacturing Processes, 1995Abstract Atomic layer processing with electrochemical control is discussed. A method for the electrodeposition of compound semiconductors based on the principles of atomic layer epitaxy (ALE) is reported, with specific reference to the formation of ZnTe. This method is referred to as electrochemical atomic layer epitaxy (ECALE).
Choong K. Rhee +4 more
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Physics Bulletin, 1984
Peter R Fontana 1982 New York: Academic xv + 270 pp price $32.50 ISBN 012 262 0208 The interaction of atoms with the electromagnetic fields in which they are immersed has long been a central topic of modern physics. Thus the classical work of Lorentz led naturally to the early quantum studies of Einstein, Dirac and Heitler, and this in its turn to the ...
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Peter R Fontana 1982 New York: Academic xv + 270 pp price $32.50 ISBN 012 262 0208 The interaction of atoms with the electromagnetic fields in which they are immersed has long been a central topic of modern physics. Thus the classical work of Lorentz led naturally to the early quantum studies of Einstein, Dirac and Heitler, and this in its turn to the ...
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Energetics of Surface Atomic Processes
Surface Science, 1990The energies needed in various surface atomic processes such as surface diffusion, binding of small atomic clusters on the surface, interaction between two adsorbed atoms, dissociation of an atom from a small cluster or from a surface layer, binding of kink site atoms or atoms at different adsorption sites to the surface etc.
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Reviews of Modern Physics, 1961
Atomic reaction measurements and calculations are surveyed. Electron elastic scattering by H atoms, slow heavy-particle reactions, fast reactions, excitation transfer, and threshold behavior are discussed. Fairly suc cessful calculations exist for most processes; most data include some deviations from theory.
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Atomic reaction measurements and calculations are surveyed. Electron elastic scattering by H atoms, slow heavy-particle reactions, fast reactions, excitation transfer, and threshold behavior are discussed. Fairly suc cessful calculations exist for most processes; most data include some deviations from theory.
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Electron—Atom (Molecule) Collision Processes
Science, 1980Electron-atom (molecule) collision processes at low and intermediate energies are discussed. Measurements of collision cross sections are described briefly. The experimental techniques and the interpretation of observations are illustrated by specific examples.
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Muonic atom — atom collision processes
1991Elastic and inelastic processes of interaction of mesohydrogen in mixture of hydrogen isotopes with light nuclei are considered. The role of the electron screening in the elastic scattering is shown to be very important. Isotopic exchange reactions as well as muon transfer to light nuclei are considered.
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Photoexcitation processes in atoms
2021hence, there is a need to independently determine the MEE signal, the atomic absorption background (AAB) for the analyzed element, and remove it prior to analysis. In view of the scarcity of elements which can practically be prepared in a free-atom gas state, several approaches to approximate the AAB have been developed: analysis of disordered ...
Kodre, Alojz +2 more
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1971
Publisher Summary This chapter provides guidelines and examples for determining the dominant atomic processes occurring in and affecting particular plasma. The common models used for analysis are described and the methods of analysis leading to knowledge of either plasma parameters or basic atomic information are exemplified by plasma generated in a ...
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Publisher Summary This chapter provides guidelines and examples for determining the dominant atomic processes occurring in and affecting particular plasma. The common models used for analysis are described and the methods of analysis leading to knowledge of either plasma parameters or basic atomic information are exemplified by plasma generated in a ...
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