The thermal radiation characteristics of some high-emittance coatings for space applications
Thickness and space environment simulation on thermal radiation properties of high emittance ceramic and inorganic coatings for space uses
Lewis, B. W.↗
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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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Role of Flight Experiments in the Study of Thermal-Control Coatings for Spacecraft
Spacecraft thermal control coating experiments, discussing unreliability of degradation results due to failure to measure radiation properties, UV wavelength dependence and micrometeroid damage
Neel, C. B.↗
Jupiter's decametric radio emission and the radiation belts of its Galilean satellites.
Jupiter decametric radiation properties explained by postulating inner Galilean satellite magnetic field existence
Burns, J. A.↗
Short dipole in a uniaxial medium.
Short dipole radiation properties in lossy uniaxial medium, defining transmission parameter in terms of integrated Poynting vector
Mittra, R.↗
Radiating flows during entry into planetary atmospheres.
Radiation properties of shock layer and nonequilibrium flows around probes entering earth, Mars, Venus and Jupiter atmosphere
Boughner, R. E.↗
Molecular radiation - Its application in physical measurements and analyses
Specialists Conference held at Marshall Space Flight Center reviewed work in molecular radiation to evaluate research possibilities in this field. Topics included spectral-line studies in the labortory, application to practical heat transfer calculations of radiative transfer models, and use of measured radiation properties of gases.
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Leakage electrons from normal galaxies - The diffuse cosmic X-ray source.
Diffuse cosmic X rays from Compton collisions between galactic leakage electrons and extragalactic background photons to verify microwave blackbody radiation properties
Brecher, K.↗
The status of thermophysics as a multidiscipline area in astronautics and aeronautics
Aerospace thermophysics considerations in spacecraft and hypervelocity vehicles systems thermal design, discussing thermal control and control coatings optical and radiative properties
Heller, G. B.↗
Meteoroid impact flash analyzer Final report
Determination of correlation between impact flash radiative properties and impacting meteoroid projectile characteristics
Alexander, R.↗
An experimental and analytical study of real surface effects on radiant heat transfer
Comparison of experimental data with predictions based on simple and more detailed models for radiation properties of surfaces
Toor, J. S.↗
Emissivities of thin metallic films at cryogenic temperatures
Thin metallic films thermal radiation properties at cryogenic temperatures, calculating spectral normal emissivity as temperature wavelength and thickness function
Armaly, B. F.↗
Flightworthy, high performance insulation development. I
Multilayer insulation systems for cryogenics protection aboard spacecraft, considering mechanical properties, radiation shielding, component evacuation rate and outgassing
Hyde, E. H.↗
Flightworthy, high performance insulation development. II
Multilayer insulation systems development and selection for cryogenics thermal protection on space vehicles, considering mechanical properties, radiation shielding, components, evacuation rate and outgassing
Hyde, E. H.↗
Remote measurement of pollution
A summary of the major conclusions and recommendations developed by the panels on gaseous air pollution, water pollution, and particulate air pollution is presented. It becomes evident that many of the trace gases are amenable to remote sensing; that certain water pollutants can be measured by remote techniques, but their number is limited; and that a similar approach to the remote measurement of specific particulate pollutants will follow only after understanding of their physical, chemical, and radiative properties is improved. It is also clear that remote sensing can provide essential information in all three categories that can not be obtained by any other means.
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Environmental simulation from 0.01 to 100 solar constants
The design and development of two solar radiation simulators with an intensity variation ranging from 0.01 to greater than 100 solar constants under vacuum conditions are discussed. The characteristics of the simulators are presented in terms of spectral content, beam uniformity, and stability. Preliminary thermal radiative property data obtained at high temperatures are reported. The general operating characteristics of the simulator are automatic starting, control of both positive and negative electrodes, and uninterrupted operation for periods in excess of 24 hours.
Jack, J. R.↗
Spectral reflectance and emittance of Apollo 11 and 12 lunar material.
The thermal radiation properties of Apollo 11 and 12 fines (soils) are reviewed and presented as a function of wavelength, angle of illumination, and bulk density. The spectral directional reflectance is presented for wavelengths from 0.6 to 2 microns and for angles of illumination of 10, 20, 30, 45, and 60 deg. The normal emittance is presented for wavelengths from 2.5 to 14.5 microns. The solar albedo and total normal emittance as a function of temperature were calculated from the spectral values. The solar albedo for Apollo 11 fines is 0.099 whereas for Apollo 12 fines is approximately 0.119 for angles of illumination of 10 deg and a density of 1600 kg cu m.
Birkebak, R. C.↗
Line formation in a Jovian atmosphere.
The nominal model of the Jovian atmosphere proposed by Divine (1970) is used as a basis for an interpretation of spectroscopic observations. The results discussed are concerned with those observations which may be quantitatively interpreted, i.e., the R-branch of the 3 nu sub 3 band of methane centered at 1.1 micron, and the hydrogen quadrupole spectrum. The results give a self-consistent model for the structure and composition of the atmosphere, and the radiative properties of the visible cloud layers.
Hunt, G. E.↗
Variation of cloud emissivity in the infrared.
The spectral radiative properties of solid and liquid H2O particles in the thermal infrared are examined. The study of these properties is aimed at an explanation of the spectral features associated with certain clouds pointed out by Hanel et al. (1972) in an analysis of the results of the Nimbus 4 infrared spectroscopy experiment.
Curran, R. J.↗