Space contamination due to manned vehicles.
Space contamination due to manned vehicles and debris atmosphere effects on dim light source observations
Bonner, G. P.↗
SEARCH · Engineering Papers
Results for “Light sources”
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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Multispectral facsimile reproducer
Facsimile reproducer records spatially well-registered true-color and false-color video data on tape. Proposed optical arrangement allows light sources to be adjusted along the mirror scanning direction in such a manner that no electronic delays are required if the reproducer is operated synchronously with the camera.
Burcher, E. E.↗
Thermal tuning of organic dye lasers
Non-mechanical method for tuning liquid laser wavelengths involves electrically varying temperature of laser medium. Technique is used to investigate behavior of laser dyes, and may lead to broad, tunable, light source for spectroscopy measurements of long path absorption.
Billman, K. W.↗
Traveling-wave photodetector has sub-nanosecond response
Mercury-doped germanium photodetector uses waveguide which increases the absorption of microwave energy within the photodetectors. Waveguide and photodetector are placed in liquid helium Dewar and cooled. A carbon dioxide laser is light source and klystron provides microwave energy. Measured response times are approximately 1 nanosecond.
Sun, C.↗
A polynomial method for determining local emission intensity by Abel inversion
Polynomial method for approximating radiation intensity from plasma light source represented by Abel transforms
Moore, D.↗
Photosensitive device to detect bearing deviation Patent
Photosensitive light source device for detecting unmanned spacecraft deviation from reference attitude
Acord, J. D.↗
Stark effect in He II and H
Stark effect He II and H beta on lines observed for transverse and longitudinal fields, using beam-foil light source
Bashkin, S.↗
Seeded cesium plasma diodes and the Penning effect
Hg and Cd seeded Ce plasma wide-spaced diode without external light source investigated for Penning effect on diode performance
Kaufman, A. J.↗
Durable cathodes for high-power inert-gas arcs
Cathode design minimizes evaporation of electrode material which may deposit on associated optical surfaces. It also results in stable operation and precise positioning of arc relative to optical collector. Innovation applies to high power light sources and to arcs used in industrial furnaces.
Decker, A. J.↗
Variable ratio beam splitter for laser applications
Beam splitter employing birefringent optics provides either widely different or precisely equal beam ratios, it can be used with laser light source systems for interferometry of lossy media, holography, scattering measurements, and precise beam ratio applications.
Brown, R. M.↗
Charge of ions emitting spectral lines
Ion charge determination from emitting spectral lines using beam foil light source technique
Bashkin, S.↗
Charge identification for spectral lines in nitrogen
Ion charge identification for spectral lines in nitrogen by beam foil light source technique
Bashkin, S.↗
Light position locating system Patent
Electro-optical detector for determining position of light source
Mclauchlan, J. M.↗
Laser grating interferometer Patent
Design and development of optical interferometer with laser light source for application to schlieren systems
Barber, J. B.↗
Optical study of the hyperfine structure of the rubidium resonance lines
Optical hyperfine splitting of Rb resonance lines of atomic beam light source, using Fabry-Perot interferometer
Andrew, K. L.↗
Reduction of Doppler broadening of spectral lines in fast-beam spectroscopy
Spectral lines Doppler broadening reduction in spectroscopy using foil and gas excited accelerator beams as light sources
Leavitt, J. A.↗
Charge identification for spectral lines in nitrogen
Spectral line emission from nitrogen ions, identifying charge by Doppler shift technique application to beam foil light source
Bashkin, S.↗
Measurement of g-factors for levels in Ne II, III
Lande g factors measurement of excited electronic states in Ne 20 II and III, using alignment of radiating particles in beam foil light source
Church, D. A.↗