Abstract

Directional radiance factors and polarization are presented for pure silicon carbide powder with an average albedo of 0.15 over a size range from 8 μ to 86 μ, pure aluminum oxide powder with average albedo about 0.85 over a size range from 0.1 μ to 86 μ, and for a mixture of one part silicon carbide to six parts aluminum oxide with average albedo of about 0.40 over a size range from 5 μ to 86 μ.

© 1967 Optical Society of America

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References

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  1. B. Lyot, Ann. Obs., Paris, Sect. Meudon 8, 1 (1929).
  2. J. Von Diggelen, Rech. Obs., Utrecht 14, 1 (1958).
  3. B. Hapke, H. Van Horn, J. Geophys. Res. 68, 4545 (1963).
    [CrossRef]
  4. K. Coulson, G. M. B. Bouricius, E. L. Gray, J. Geophys. Res. 70, 4601 (1965).
    [CrossRef]
  5. A. Dollfus, in Physics and Astronomy of the Moon, Z. Kopal, Ed. (Academic Press Inc., New York, 1962).
  6. A. Dollfus, in Planets and Satellites, The Solar System III, G. Kuiper, Ed. (Univ. of Chicago Press, Chicago, 1961).
  7. P. Oetking, J. Geophys. Res. 71, 2505 (1966).
    [CrossRef]
  8. J. J. Hopfield, Science 151, 1380 (1966).
    [CrossRef] [PubMed]
  9. J. S. Preston, Trans. Opt. Soc. London 31, 15 (1929).
    [CrossRef]
  10. H. F. Meacock, F. A. Garforth, R. G. Shrubsall, J. Sci. Instr. 39, 384 (1962).
    [CrossRef]
  11. W. E. K. Middleton, L. Sanders, J. Opt. Soc. Am. 41, 419 (1951).
    [CrossRef] [PubMed]
  12. D. B. Judd, J. Opt. Soc. Am. 57, 445 (1967).
    [CrossRef] [PubMed]
  13. B. W. Hapke, J. Geophys. Res. 68, 4571 (1963).
    [CrossRef]

1967 (1)

1966 (2)

P. Oetking, J. Geophys. Res. 71, 2505 (1966).
[CrossRef]

J. J. Hopfield, Science 151, 1380 (1966).
[CrossRef] [PubMed]

1965 (1)

K. Coulson, G. M. B. Bouricius, E. L. Gray, J. Geophys. Res. 70, 4601 (1965).
[CrossRef]

1963 (2)

B. Hapke, H. Van Horn, J. Geophys. Res. 68, 4545 (1963).
[CrossRef]

B. W. Hapke, J. Geophys. Res. 68, 4571 (1963).
[CrossRef]

1962 (1)

H. F. Meacock, F. A. Garforth, R. G. Shrubsall, J. Sci. Instr. 39, 384 (1962).
[CrossRef]

1958 (1)

J. Von Diggelen, Rech. Obs., Utrecht 14, 1 (1958).

1951 (1)

1929 (2)

J. S. Preston, Trans. Opt. Soc. London 31, 15 (1929).
[CrossRef]

B. Lyot, Ann. Obs., Paris, Sect. Meudon 8, 1 (1929).

Bouricius, G. M. B.

K. Coulson, G. M. B. Bouricius, E. L. Gray, J. Geophys. Res. 70, 4601 (1965).
[CrossRef]

Coulson, K.

K. Coulson, G. M. B. Bouricius, E. L. Gray, J. Geophys. Res. 70, 4601 (1965).
[CrossRef]

Dollfus, A.

A. Dollfus, in Physics and Astronomy of the Moon, Z. Kopal, Ed. (Academic Press Inc., New York, 1962).

A. Dollfus, in Planets and Satellites, The Solar System III, G. Kuiper, Ed. (Univ. of Chicago Press, Chicago, 1961).

Garforth, F. A.

H. F. Meacock, F. A. Garforth, R. G. Shrubsall, J. Sci. Instr. 39, 384 (1962).
[CrossRef]

Gray, E. L.

K. Coulson, G. M. B. Bouricius, E. L. Gray, J. Geophys. Res. 70, 4601 (1965).
[CrossRef]

Hapke, B.

B. Hapke, H. Van Horn, J. Geophys. Res. 68, 4545 (1963).
[CrossRef]

Hapke, B. W.

B. W. Hapke, J. Geophys. Res. 68, 4571 (1963).
[CrossRef]

Hopfield, J. J.

J. J. Hopfield, Science 151, 1380 (1966).
[CrossRef] [PubMed]

Judd, D. B.

Lyot, B.

B. Lyot, Ann. Obs., Paris, Sect. Meudon 8, 1 (1929).

Meacock, H. F.

H. F. Meacock, F. A. Garforth, R. G. Shrubsall, J. Sci. Instr. 39, 384 (1962).
[CrossRef]

Middleton, W. E. K.

Oetking, P.

P. Oetking, J. Geophys. Res. 71, 2505 (1966).
[CrossRef]

Preston, J. S.

J. S. Preston, Trans. Opt. Soc. London 31, 15 (1929).
[CrossRef]

Sanders, L.

Shrubsall, R. G.

H. F. Meacock, F. A. Garforth, R. G. Shrubsall, J. Sci. Instr. 39, 384 (1962).
[CrossRef]

Van Horn, H.

B. Hapke, H. Van Horn, J. Geophys. Res. 68, 4545 (1963).
[CrossRef]

Von Diggelen, J.

J. Von Diggelen, Rech. Obs., Utrecht 14, 1 (1958).

Ann. Obs., Paris, Sect. Meudon (1)

B. Lyot, Ann. Obs., Paris, Sect. Meudon 8, 1 (1929).

J. Geophys. Res. (4)

P. Oetking, J. Geophys. Res. 71, 2505 (1966).
[CrossRef]

B. Hapke, H. Van Horn, J. Geophys. Res. 68, 4545 (1963).
[CrossRef]

K. Coulson, G. M. B. Bouricius, E. L. Gray, J. Geophys. Res. 70, 4601 (1965).
[CrossRef]

B. W. Hapke, J. Geophys. Res. 68, 4571 (1963).
[CrossRef]

J. Opt. Soc. Am. (2)

J. Sci. Instr. (1)

H. F. Meacock, F. A. Garforth, R. G. Shrubsall, J. Sci. Instr. 39, 384 (1962).
[CrossRef]

Rech. Obs., Utrecht (1)

J. Von Diggelen, Rech. Obs., Utrecht 14, 1 (1958).

Science (1)

J. J. Hopfield, Science 151, 1380 (1966).
[CrossRef] [PubMed]

Trans. Opt. Soc. London (1)

J. S. Preston, Trans. Opt. Soc. London 31, 15 (1929).
[CrossRef]

Other (2)

A. Dollfus, in Physics and Astronomy of the Moon, Z. Kopal, Ed. (Academic Press Inc., New York, 1962).

A. Dollfus, in Planets and Satellites, The Solar System III, G. Kuiper, Ed. (Univ. of Chicago Press, Chicago, 1961).

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Figures (12)

Fig. 1
Fig. 1

Directional radiance factor for magnesia smoke.

Fig. 2
Fig. 2

Polarization for magnesia smoke.

Fig. 3
Fig. 3

Directional radiance factor for fine SiC, Al2O3, and SiC/Al2O3 powder mixtures.

Fig. 4
Fig. 4

Directional radiance factors for coarse SiC, Al2O3, and SiC/Al2O3 powder mixtures.

Fig. 5
Fig. 5

Directional radiance factor vs illumination angle θ0 for SiC powders.

Fig. 6
Fig. 6

Polarization for fine SiC, Al2O3, and SiC/Al2O3 mixtures.

Fig. 7
Fig. 7

Polarization for coarse SiC, Al2O3, and SiC/Al2O3 mixtures.

Fig. 8
Fig. 8

Negative polarization vs particle size for SiC powders.

Fig. 9
Fig. 9

Directional radiance factor and polarization for very fine Al2O3 powders.

Fig. 10
Fig. 10

Azimuth dependence of directional radiance factor for magnesia smoke.

Fig. 11
Fig. 11

Azimuth dependence of directional radiance factor for SiC powder.

Fig. 12
Fig. 12

Azimuth dependence of directional radiance factor for Al2O3 powder.

Tables (1)

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Table I Specimen Materials

Equations (1)

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P - λ d f π ln ( 1 + π 2 d 2 λ r ) ,

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