Definitive determination of the ionization stage for spectral lines.
Ionization charge stage for spectral lines determined by sending particle beam through field which separates components of different net charge
VAN DE GRAAFF ACCELERATOR↗
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Peaking approximations in atomic scattering problems
Born approximation and wave functions, and peaking approximation for Coulomb Born matrix shown to misrepresent excitation and ionization cross sections in atomic scattering problems
Kyle, H. L.↗
Ionization of ions
Charged particle binary encounter model modified for evaluating ionization cross section of positive ions by electron impact
Garcia, J. D.↗
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.↗
Double ionization of helium by fast protons.
Double ionization cross section of He when bombarded by protons calculated using Born approximation, noting energy dependence
Oldham, W. J. B., Jr.↗
Atomic-shell structure in inelastic collisions.
Atomic shell structure in atoms ionization by inelastic collisions with charged projectiles, discussing alkali atoms electron impact ionization cross sections
Garcia, J. 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.↗
Calculation on ionizing H-atom H-atom collisions
Born approximation for ionization cross sections of H-atom H-atom collision with ground state and excited state factors
Kyle, H. L.↗
Electron-impact ionization of H/2s/ and H/2p/.
Electron impact ionization cross sections for second quantum level of atomic H, using Born exchange approximation and Vainshtein approximation
Kyle, H. L.↗
Ionization in low-energy atomic collisions of neon with neon and krypton with krypton.
Total ionization cross section for symmetric collisions measured as function of energy by using neutral atomic beams of neon and krypton
Amme, R. C.↗
Energy spectrum of the secondary electrons and the fluorescent efficiency of electrons in the 3914-angstrom units band.
Energy spectrum of secondary electrons and fluorescent efficiency in 3914 A band, obtaining ionization cross section
Khare, S. P.↗
The palladium transmodulator - A new component for the gas chromatograph
Palladium alloy transmodulator for gas chromatograph, demonstrating sensitivity gain for thermal conductivity and ionization cross section detectors
Charlton, K. W.↗
Calculation on ionizing H-atom-H-atom collisions
Ionization cross sections for excited H atom- ground state H atom collisions, using Born approximation
Kyle, H. L.↗
Radiative interactions of electrons with matter
Equipment and capabilities developed in investigation of K and L shell ionization cross sections, X ray intensity ratios, bremsstrahlung spectrum, coincidence, and inelastic electron scattering
Quarles, C. A.↗
High-temperature mass spectrometry, vaporization, and thermodynamics of titanium monosulfide
TiS vaporization thermodynamics by high temperature mass spectrometry, considering ionic fragmentation and ionization cross section errors
Edwards, J. G.↗
Light emission measurements of calcium and magnesium at simulated meteor conditions. I, II
Ca and Mg light emission and ionization cross section measurements at simulated meteor conditions, using photomultiplier and optical filters
Boitnott, C. A.↗
Atmospheric excitation and ionization by ions in strong auroral and man-made electric fields
Excitation and ionization cross sections of atmospheric molecular species by low energy ions in strong auroral and man-made electric fields
Cole, K. D.↗
A portable self-contained gas chromatograph.
The design and fabrication of a completely portable, self-contained gas chromatograph is described. This instrument utilizes a closed-loop hydrogen carrier gas flow as maintained by a hydrogen generator-separator. It employs an auxiliary hydrogen generator to keep a positive flow of hydrogen through the detector. The detector is an ionization cross section detector. The only maintenance required is the addition of water (5-15 cc/day) to the auxiliary hydrogen generator. Lower limit of detection for the present system is of the order of 1-10 ppm ethane.
Stevens, M. R.↗