Physics of planetary atmospheres. IV - Gas analysis by photoionization mass spectrometry
Photoionization mass spectrometer with 180 deg magnetic analyzer and use as gas analyzer
SEARCH · Engineering Papers
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Photoionization mass spectrometer with 180 deg magnetic analyzer and use as gas analyzer
Mass spectrometer using photoionization for ion production
Photoionization cross sections calculated for carbon, nitrogen and oxygen ions, using Hartree- Fock approximation for final transition stages
Forbidden photoionization and electron spin polarization
Photoionization mass spectrometer for ion-molecule reaction studies, determining ion residence times, drift velocities, diffusion coefficients and ion temperatures
Photoionization mass spectrometer for charge transfer reaction analysis
Photoionization yield and absorption coefficient of nitric oxide at various wavelengths in 580-1350 angstrom region, using H sub 2 emission sources
Ionospheric ion-neutral reactions studied by photoionization mass spectrometer, noting temperature independent reactions
Vacuum ultraviolet ceramic photoionization chamber developed for a rocket astronomy program including its use in the orbiting solar observatory
Formulation of hartree-fock approximation for final states of atomic oxygen photoionization
Photoionization detector with an alumina shell, a beryllium foil window, and a xenon gas fill measures small incident photon fluxes from soft X rays. It has high spectral selectivity and quantum efficiencies, and a long shelf life. It minimizes electrical leakage and recontamination, and will hold a high vacuum.
Calculation of photoionization cross sections of nitrogen and oxygen atoms and ions in excited states using quantum defect method
Ultraviolet filter and monochromator for mass spectrometer employing photoionization source
Helium ions reactions with nitrogen and oxygen investigated by photoionization mass spectrometry, discussing rate coefficients
Multichannel photoionization chamber to measure absorption, yield and light intensity of gases in vacuum UV
Use of photoionization in measuring velocity profile of free stream flow in expansion tube
Simultaneous photoexcitation and photoionization of He near threshold at 186 A, measuring probability
Major ions in chemi-ionization of hydrocarbon flames determined for heats of formation by photoionization mass spectrometer