Physics – Optics
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978pau..rept.....g&link_type=abstract
Final Report Pan American Univ., Edinburg, TX.
Physics
Optics
Astronomical Spectroscopy, Diffuse Radiation, Frost, Infrared Reflection, Minerals, Reflectance, Spectrum Analysis, Band Structure Of Solids, Barium Compounds, Indium Antimonides, Magnesium Oxides, Monochromators, Sulfates
Scientific paper
A vacuum monochromator was integrated into the system and optics chosen to increase data collection in the infrared spectral region. Using a InSb detector, good reflectance data was obtained to 5.5 micron from a variety of samples including magnesium oxide, barium sulfate, water frost and Bloedite. Magnesium oxide was found to be a poorer reflector than the barium sulfate throughout the visible and near infrared region. The barium sulfate material was shown to be a Lambert reflector in the visible region and over an angular range of 60 deg. Several samples of water frost were prepared and in reflectance measured from 0.3 micron to 5.5 microm. The fine grained frosts were better reflectors than the coarse grained frosts, usually by 20 percent or more, over the entire spectral range. The minerals Bloedite and sulfur were also investigated further.
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