Excitation of atomic hydrogen by lithium atoms
Lithium atom excitation of atomic hydrogen
QUANTUM NUMBER↗
SEARCH · Search NASA
Results for “ATOMIC EXCITATION”
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.
How to detect an excited atom without disturbing it or how to locate a super-mine without exploding it
Possible realistic implementations of a method for interaction-free measurements, due to Elitzur and Vaidman, are proposed and discussed. It is argued that the effect can be easily demonstrated in an optical laboratory.
Vaidman, Lev↗
Electron Collisions with Coherently Excited Atoms. Alignment Creation and Transfer Cross Sections and Their Role in Plasma Polarization Spectroscopy
Explore the source record for details and available documents.
electron atom collisions collision physics electro↗
Observation of different lifetimes for atomic states excited with linearly and circularly polarized light.
Lifetimes of orientation and alignment of excited atomic states examined in level crossing and optical double resonance experiments employing polarized light
ATOMIC EXCITATION↗
Radiative mean-life measurements of some atomic-hydrogen excited states using beam-foil excitation.
Excited atomic H state radiative mean life measurements using beam-foil excitation method
Chupp, E. L.↗
Excitation of Atomic Hydrogen by Protons
Excitation cross sections for protons incident on atomic hydrogen calculated by nonadiabatic method
NONADIABATIC THEORY↗
Glauber theory of atomic-hydrogen excitation by electron impact
Hydrogen atom excitation at various energy levels by electron impact, applying Glauber theory
Bassel, R. H.↗
High-Rydberg Xenon Submillimeter-Wave Detector
Proposed detector for infrared and submillimeter-wavelength radiation uses excited xenon atoms as Rydberg sensors instead of customary beams of sodium, potassium, or cesium. Chemically inert xenon easily stored in pressurized containers, whereas beams of dangerously reactive alkali metals must be generated in cumbersome, unreliable ovens. Xenon-based detector potential for infrared astronomy and for Earth-orbiter detection of terrestrial radiation sources. Xenon atoms excited to high energy states in two stages. Doubly excited atoms sensitive to photons in submillimeter wavelength range, further excited by these photons, then ionized and counted.
Chutjian, Ara↗
Excitation of atomic hydrogen to the metasable 2 2S1/2 state by electron impact
Atomic hydrogen excitation to metastable 2 /2/ S sub 1/2 state by electron impact
Fite, W. L.↗
The excitation of atomic hydrogen from the n to the n plus 1 levels by electron impact
Atomic H excitation by electron impact, deriving cross sections for anomalous recombination lines in H II regions radio frequency spectrum
Flannery, M. R.↗
Polarization of Lyman-Alpha Radiation from Atomic Hydrogen Excited by Electron Impact form Near Threshold to 1800 eV
The polarization of Lyman-a radiation, produced by electron-impact excitation of atomic hydrogen, has been measured over the extended energy range from near threshold to 1800 eV. Measurements were obtained in a crossed-beam experiment using a silica-reflection linear polarization analyzer in tandem with a vacuum-ultraviolet monochromator to isolate the emitted line radiation. Comparison with various theoretical calculations shows that the present experimental results are in good agreement with theory over the entire range of electron-impact energies and, in particular, are in excellent agreement with theoretical convergent-close-coupling (CCC) calculations performed in the present work. Our polarization data are significantly different from the previous experimental measurements of Ott, Kauppila, and Fite.
James, G. K.↗
Polarization of Lyman-(alpha) Radiation from Atomic Hydrogen Excited by Electron Impact from Near-Threshold to 1800eV
The polarization of Lyman-(alpha) radiation, produced by electron impact excitation of atomic hydrogen, has been measured for the first time over the extended energy range from near-threshold to 1800eV. Measurements were obtained in a crossed-beams experiment using a silica-reflection linear polarization analyzer in tandem with a vacuum ultraviolet (VUV) monochromator to isolate the emitted line radiation.
Lyman atomic line radiation Zeeman effect VUV pola↗
Excitation of Atomic Hydrogen by Protons
Excitation cross sections for proton-hydrogen atom collisions calculated by nonadiabatic method
HYDROGEN ATOM↗
Electric-field and multiple-foil excitation experiments on beam-foil-excited hydrogen atoms.
Electric field and multiple exciter carbon foils effect on relative populations of beam foil excited hydrogen atoms, studying Lyman alpha flux decay rate
Bickel, W. S.↗
Excitation of atomic oxygen and carbon by collisions with hydrogen atoms.
Cross sections for excitation of fine structure levels in neutral atomic oxygen and carbon by collision with hydrogen atoms
Callaway, J.↗
Long-range first-order interaction energy between two excited hydrogen atoms in either 2s or 2p states.
Long range first order interaction between two excited hydrogen atoms yielding perturbation energy matrix, discussing diagonalization process
HYDROGEN ATOM↗
Cross section for ionization of alkali atoms by collision with excited noble gas atoms.
MHD power generator in which ionization of alkali atoms occurs by collision with excited noble gas atoms, calculating velocity-dependent cross section
MAGNETOHYDRODYNAMIC GENERATOR↗
Glauber theory of atomic hydrogen excitation by electron impact
Glauber and Born approximations of electron impact excitations of hydrogen atomic energy levels
Bassel, R. H.↗