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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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At least 433 records · Page 24

All sources NASA NTRS DOE OSTI

NASA NTRS1965

Reduction of infrared maser losses by cavity tubing.

Reflection coefficient of cavity tubing as explanation for power level of helium-neon IR FABRY-PEROT interferometer

INFRARED MASER↗

NASA NTRS1965

Dispersion characteristics of the 1.15-mu he-ne laser line.

Dispersion of 1.15 micron He-Ne laser line resulting from neon absorption transition

LASER OUTPUT↗

NASA NTRS1966

Laser measuring system accurately locates point coordinates on photograph

Laser activated ultraprecision ranging apparatus interfaced with a computer determines point coordinates on a photograph. A helium-neon gas CW laser provides collimated light for a null balancing optical system. This system has no mechanical connection between the ranging apparatus and the photograph.

Doede, J. H.↗

NASA NTRS1965

The multiply-charged primary cosmic radiation at solar minimum, 1965

Primary cosmic ray charge and energy spectra determination for helium through neon during solar minimum

ENERGY SPECTRUM↗

NASA NTRS1965

Isotope shift measurement for 6328 angstrom units He-Ne laser transition.

Isotope shift measurement for 6328 angstroms helium-neon laser transition

FABRY-PEROT INTERFEROMETER↗

NASA NTRS1966

Effects of collisions on saturation behavior of the 1.15- mu transition of Ne studied with He-Ne laser.

Output power frequency response of single mode helium neon laser, determining effects of atomic collisions on frequency response of individual atoms

FREQUENCY RESPONSE↗

NASA NTRS1966

Measurements of ultraviolet /575 angstrom units/ radiation from nitrogen at temperatures from 13,000 deg K to 16,000 deg K.

UV radiation from shock-heated nitrogen measured by ballistic flight through nitrogen-neon mixture

NITROGEN↗

NASA NTRS1966

Interstellar and intergalactic absorption of cosmic X rays.

Interstellar X-ray absorption edges due to K- shell photoionization of oxygen and neon, using element abundances and atomic photoelectric cross section data

X-RAY ABSORPTION↗

NASA NTRS1967

System enables more complete calibrations of dynamic-pressure transducers

Absolute pressure calibration system using a Michelson interferometer calibrates phase characteristics and pressure sensitivities of the transducers that monitor acoustic or aerodynamic pressure fields. The interferometer uses a helium-neon laser light source and interchangeable acoustic signal generators to produce acoustic waves.

Pernet, D. F.↗

NASA NTRS1966

Cold cathodes for possible use in 6328 angstrom single mode He-Ne gas lasers

Aluminum cold cathodes for single mode helium neon gas lasers

COLD CATHODE↗

NASA NTRS1966

Ionization from Fe atoms incident on various gas targets

Ionization from iron atoms incident on target gases of helium, neon, nitrogen, carbon dioxide, and air

IRON↗

NASA NTRS1967

Plasma spectroscopy

Transition probabilities, excitation cross sections, and neon glow studies for plasmas

TRANSITION PROBABILITY↗

NASA NTRS1967

Atomic r sub ij integrals for many-electron wavefunctions.

Integration scheme for variational r sub ij wave functions containing unlinked four-electron correlated terms for atoms up to neon

FOUR-BODY METHOD↗

NASA NTRS1967

Receiver techniques and detectors for use at millimeter and submillimeter wave lengths Annual summary report, Oct. 1, 1966 - Sep. 30, 1967

Receiver techniques and detectors for use at millimeter and submillimeter wavelengths, and excitation cross sections for argon II, krypton II, and neon II gas lasers

Source record↗

NASA NTRS1967