Classical approximation for ionization by proton impact.
Atomic ionization by proton impact predicted by classical binary encounter approximation compared to experimental data, discussing ionization cross sections
Garcia, J. D.↗
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Results for “IONIZATION”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Effect of line radiation on precursor ionization.
Line radiation effect on precursor ionization of partially singly ionized monatomic gas with three energy levels, considering collisions between species
Murty, S. S. R.↗
Gage measures total radiation, including vacuum UV, from ionized high-temperature gases
Transient-heat transfer gage measures the total radiation intensity from vacuum ultraviolet and ionized high temperature gases. The gage includes a sensitive piezoelectric crystal that is completely isolated from any ionized flow and vacuum ultraviolet irradiation.
Wood, A. D.↗
Empirical Observations on the Sensitivity of Hot Cathode Ionization Type Vacuum Gages
A study of empirical methods of predicting tile relative sensitivities of hot cathode ionization gages is presented. Using previously published gage sensitivities, several rules for predicting relative sensitivity are tested. The relative sensitivity to different gases is shown to be invariant with gage type, in the linear range of gage operation. The total ionization cross section, molecular and molar polarizability, and refractive index are demonstrated to be useful parameters for predicting relative gage sensitivity. Using data from the literature, the probable error of predictions of relative gage sensitivity based on these molecular properties is found to be about 10 percent. A comprehensive table of predicted relative sensitivities, based on empirical methods, is presented.
Summers, R. L.↗
Constant of step-by-step ionization of atoms
Ionization constants in ionization in large discharge tubes
Smirnov, B. M.↗
Approximate higher ionization potentials for the heavier elements.
Approximate ionization potentials for high ionization stages of elements with atomic numbers 31 to 92 obtained by binding energy calculations
Kastner, S. O.↗
Ionization of positive ions.
Binary encounter model for ionization by charged particle impact modified to evaluate cross section for ionization of positive ions by electron impact
Garcia, J. D.↗
Measurements of an ionizable constituent of the low ionosphere using a Lyman-alpha source and blunt probe.
D region ionizable constituent density /presumably nitric oxide/ measured, using blunt probe to detect changes in conductivity produced by Lyman alpha ionizing radiation
Hale, L. C.↗
Stripping and ionization in low-energy collisions of H on O sub 2 and N sub 2.
Stripping and low-energy collisions of H atoms on O and N molecules, showing target ionization to projectile stripping ratio dependence on ionization potential
Fleischmann, H. H.↗
An improved Orbitron ionization gage measures ultrahigh vacuum
Ionization gage with improved signal-to-noise ratio has a helical coil electrode which separates the solid cathode ion collector from the volume where ionization of gas molecules takes place. Helical coil increases lifetime of electrons and reduces secondary emission from the collector.
Gosselin, C. M.↗
Effect of excited states on ionization rates
Heavy particle impact ionization in hot gases analyzed for ionization rates relationships
Hansen, C. F.↗
Statistical mechanics of a partially ionized hydrogen plasma
Statistical mechanics of partially ionized hydrogen plasma, deriving Saha equation to calculate ionization degree and potential for various electron densities and temperature
Kepple, P.↗
The altitude dependence of the quiettime cosmic ray ionization over the polar regions at solar minimum
Quiettime cosmic ray ionization altitude dependence over polar regions from measurements by integrating ionization chamber on OGO-2
George, M. J.↗
The spectrum of triply-ionized oxygen, O IV
Triply ionized oxygen atom spectrum between 500-8000 A, determining energy levels and ionization limit
Bromander, J.↗
New data on the absolute cosmic ray ionization in the lower atmosphere
Absolute cosmic ray ionization in lower atmosphere, using air-filled ionization chamber
George, M. J.↗
A limit analysis for determining the accuracy of ionized gas composition
Limit analysis for ionization potential reduction effect on ionized gas atomic composition, considering temperature and electron density
Horton, T. E.↗
The electron transfer process in field ionization
Electron transfer in ion microscope field ionization, analyzing band and periodic surface structure effects, ionization probability and collision formalism
Fonash, S. J.↗
Field ionization data using a graphite emitter
Field ionization yield with single graphite whisker lateral surface as ionizer, using helium, ammonia, carbon monoxide and carbon dioxide
Bryant, P. J.↗