Journal ArticleDOI
Measurement of total cross sections for electron recombination with NO+ and O2 + using ion storage techniques
Fred L. Walls,G. H. Dunn +1 more
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In this article, the total cross section as a function of electron energy for recombination of electrons with room temperature NO+ has been measured with a trapped ion technique with an energy resolution between 0.045 and 0.120 eV.Abstract:
The total cross section as a function of electron energy for recombination of electrons with room temperature NO+ has been measured with a trapped ion technique. Measurements were made in the electron energy range 0.045–4 eV with an energy resolution between 0.045 and 0.120 eV, and the cross sections, which showed some structure, ranged from 1.25 × 10−14 cm² at the lowest energy to 1.7 × 10−16cm² at the highest energy. Similar measurements were made on O2+, the species used to calibrate the apparatus geometry. A Maxwellian distribution of electron velocities was used with the measured cross sections to calculate rate constants, giving values extending to electron temperatures as high as 40,000°K. Comparison with previously measured rate coefficients at lower temperatures is quite satisfactory.read more
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Kinetic model of a low-pressure N/sub 2/-O/sub 2/ flowing glow discharge
B.F. Gordiets,Carlos M. Ferreira,Vasco Guerra,J Loureiro,J Nahorny,D. Pagnon,Michel Touzeau,M Vialle +7 more
TL;DR: In this article, a self-consistent kinetic model was developed to study dc flowing glow discharges in N/sub 2/O/Sub 2/ mixtures, which includes the calculation of electron energy distribution functions and electron rate coefficients coupled with detailed vibrational kinetics of N/ sub 2/ molecules, chemical kinetics taking into account of neutral, excited and charged species, interaction of N and O atoms at the discharge tube wall, and the thermal balance of the discharge.
Journal ArticleDOI
The auroral 6300 Å emission: Observations and modeling
TL;DR: In this article, a tomographic inversion is used to analyze measurements of the auroral atomic oxygen emission line at 6300 A made by the atmosphere explorer visible airglow experiment.
Journal ArticleDOI
On the global mean structure of the thermosphere
TL;DR: In this paper, a self-consistent model of the global mean structure of the thermosphere was used to examine the ionospheric and thermospheric processes that control the structure of this region for solar minimum and maximum conditions during geomagnetic quiet periods.
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Dissociative Recombination of Molecular Ions
Mats Larsson,Ann E. Orel +1 more
TL;DR: In this paper, the H2+molecule, Diatomic hydride ions, and the H3+ molecule have been studied using experimental methods and theoretical methods.
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Ion chemistry in space
TL;DR: The gas-phase chemistry in extraterrestrial space that is driven by reactions with atomic and molecular ions is reviewed, not only the observation, distribution and reactions of ions in space, but also laboratory-based experimental and theoretical methods for studying these ions.
References
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Characteristics of the Trochoidal Electron Monochromator
A. Stamatovic,G. J. Schulz +1 more
TL;DR: In this paper, an electron monochromator for use in an axial magnetic field is described, where the electrons are injected parallel to the magnetic field and an electric field is applied in a perpendicular direction.
Journal ArticleDOI
Electron Temperature Dependence of Recombination of O 2 + and N 2 + Ions with Electrons
F. J. Mehr,Manfred A. Biondi +1 more
TL;DR: In this paper, a microwave-afterglow/mass-spectrometer apparatus was used to determine the recombination coefficients of mass-identified ions with electrons as a function of electron temperature.
Journal ArticleDOI
ELECTRON TEMPERATURE DEPENDENCE OF RECOMBINATION OF O$sub 2$$sup +$ AND N$sub 2$$sup +$ IONS WITH ELECTRONS.
F.J. Mehr,Biondi +1 more
Journal ArticleDOI
The theory of dissociative recombination
TL;DR: It is suggested that there are two distinct modes of dissociative recombination, which are called direct and indirect, and it is shown that spectroscopic data can be used to give estimates of these rates.
Journal ArticleDOI
The collisional deactivation of metastable atoms and molecules in the upper atmosphere
TL;DR: In this paper, the radiative lifetimes, diffusion coefficients, and reaction rate coefficients of highly reactive metastable species with very long radiative lifetime have been studied in the light of atmospheric measurements and current theories of the terrestrial airglow and aurora.
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ELECTRON TEMPERATURE DEPENDENCE OF RECOMBINATION OF O$sub 2$$sup +$ AND N$sub 2$$sup +$ IONS WITH ELECTRONS.
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