Abstract
ANOMALOUS backscattering or “back gloss” has been noticed by Brandenberg and Neu1 for some paints and Gordon2 for soils. A semi-automatic goniophotometer recently constructed at this establishment has shown that this effect also occurs with many materials including magnesium oxide, magnesium carbonate, white card, paper, abraded metallic surfaces and many fine powders.
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References
Brandenberg, W. M., and Neu, J. T., J. Opt. Soc. Amer., 56, 97 (1966).
Gordon, J. I., Applied Optics, 3, 550 (1964).
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SEANEY, R. Optical Diffraction Effects in the Back-reflected Energy Distribution from an Aggregate of Small Irregular Particles. Nature 212, 1447–1448 (1966). https://doi.org/10.1038/2121447a0
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DOI: https://doi.org/10.1038/2121447a0
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