The two-photon decay of the metastable helium ion
Metastable He ion two photon decay, observing photon coincidence angular correlation in spectral distribution
Novick, R.↗
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Ionization and metastable excitation in low- energy collisions of ground-state argon atoms
Ionization and metastable excitation in low energy collisions of ground state argon atoms formed by charge transfer
Amme, R. C.↗
Lifetimes and fine structure of the metastable autoionizing /1s2s2p/ /4/ P sub J states of the negative helium ion
Lifetimes and fine structure of differentially metastable autoionizing states of negative He ion in axial magnetic field, using time of flight techniques
Blau, L. M.↗
Energy spectra of metastable oxygen atoms produced by electron impact dissociation of O2
Kinetic energies of metastable oxygen atoms formed by electron impact dissociation of oxygen and measured in time of flight experiment
Borst, W. L.↗
Formation of metastable hydrogen atoms by charge transfer
Total cross section measurements for formation of metastable hydrogen atoms by charge transfer of proton traversed targets of helium, argon, nitrogen, and oxygen
Fitzwilson, R. L.↗
Reactions of metastable nitrogen atoms
Line absorption analysis and reaction kinetics of two metastable nitrogen atomic energy levels
Kaufman, F.↗
Production of CO(a 3 Pi) and other metastable fragments by electron impact dissociation of CO2
Dissociative excitation of CO(a 3 Pi) and other metastable fragments such as O(5S) produced by electron impact on CO2
Wells, W. C.↗
Lifetimes of metastable CO and N2 molecules
Metastable radiative lifetimes of molecular states of nitrogen and CO, using time of flight and high resolution electron gun techniques
Borst, W. L.↗
Metastable atom probe for measurement of electron beam density profiles
Electron beam current density measurement using neutral Ar atoms electron impact excitation to metastable states
Lockhart, J. M.↗
Formation of metastable hydrogen atoms by charge transfer
Cross sections of metastable H formation by charge transfer of hydrogen ion beam on helium, argon, nitrogen and oxygen targets
Fitzwilson, R. L.↗
Energy spectra of metastable oxygen atoms produced by electron-impact dissociation of O2
Time of flight energy spectra of high lying and Rydberg metastable atoms by electron impact dissociation of molecular oxygen, noting atmospheric applications
Borst, W. L.↗
Liquid/solid on evaporative fluid metastable Leidenfrost states
Floating times of liquid/solid sphere on evaporative fluid /liquid nitrogen/ in metastable Leidenfrost film boiling
Hendricks, R. C.↗
Metastable atom probe for measuring electron beam density profiles
Metastable atom probe was developed for measuring current density in electron beam as function of two arbitrary coordinates, with spatial resolution better than 0.5 mm. Probe shows effects of space charge, magnetic fields, and other factors which influence electron current density, but operates with such low beam densities that introduced perturbation is very small.
Lockhart, J. M.↗
Production of CO /a 3Pi/ and other metastable fragments by electron impact dissociation of CO2.
The dissociative excitation of CO (a 3Pi) and other metastable fragments produced by electron impact on CO2 has been investigated from threshold to 50 eV. The observed threshold for CO (a 3Pi) production at 11.9 (plus or minus 0.5) eV was near the minimum required energy of 11.5 eV.
Wells, W. C.↗
Long-range interaction between metastable helium and ground state helium.
Results of analysis for the long-range interaction between ground state helium and triplet metastable helium, which shows that the long-range coefficient is the same for both gerade and ungerade states. Those terms which lead to the second term on the right hand side of a developed equation vanish through spin selection rules.
Victor, G. A.↗
Current status of free radicals and electronically excited metastable species as high energy propellants
A survey is presented of free radicals and electronically excited metastable species as high energy propellants for rocket engines. Nascent or atomic forms of diatomic gases are considered free radicals as well as the highly reactive diatomic triatomic molecules that posess unpaired electrons. Manufacturing and storage problems are described, and a review of current experimental work related to the manufacture of atomic hydrogen propellants is presented.
Rosen, G.↗
Metastable states of highly excited heavy ions
Description of the method used and results obtained in an experimental study of the metastable states of highly stripped heavy ions, aimed at determining the lifetimes of such states by the rates of autoionization and radiation. The significance and limitations of the results presented are discussed.
Pegg, D. J.↗
Formation of HO2/+/ by reaction of metastable O2/+/ ions with H2
The photoionization efficiency curves of H2(+), O2(+), and HO2(+) have been studied in a mixture of hydrogen and oxygen over the wavelength range from 650 to 810 A. The HO2(+) ion appears at 804 A, the threshold for ionization of H2, by the reaction H2(+) + O2 yields HO2(+) + H. The relative photoionization efficiency curves of H2(+) and HO2(+) are the same from 804 to 764 A. Below 764 A production of the 4 Pi u metastable electronic state of O2(+) leads to the formation of HO2(+) by the reaction O2(+)(a 4 Pi u) + H2 yields HO2(+) + H.
Ajello, J. M.↗