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A photometric investigation of the packing state of apollo 11 lunar regolith samples

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A photometric investigation of the packing state of apollo 11 lunar regolith samples. / Wilson, L.
In: Planetary and Space Science, Vol. 21, No. 1, 01.1973, p. 113-118.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Wilson, L 1973, 'A photometric investigation of the packing state of apollo 11 lunar regolith samples', Planetary and Space Science, vol. 21, no. 1, pp. 113-118. https://doi.org/10.1016/0032-0633(73)90023-8

APA

Wilson, L. (1973). A photometric investigation of the packing state of apollo 11 lunar regolith samples. Planetary and Space Science, 21(1), 113-118. https://doi.org/10.1016/0032-0633(73)90023-8

Vancouver

Wilson L. A photometric investigation of the packing state of apollo 11 lunar regolith samples. Planetary and Space Science. 1973 Jan;21(1):113-118. doi: 10.1016/0032-0633(73)90023-8

Author

Wilson, L. / A photometric investigation of the packing state of apollo 11 lunar regolith samples. In: Planetary and Space Science. 1973 ; Vol. 21, No. 1. pp. 113-118.

Bibtex

@article{e98688f63171408e97c946e658d467c4,
title = "A photometric investigation of the packing state of apollo 11 lunar regolith samples",
abstract = "The angular light scattering properties of an Apollo 11 lunar regolith 'fines' sample have been determined experimentally for both flat and undulating sample surface preparations. The light scattering curves, whose shapes are known to be a function of the porosity and slope distribution of the measured surface, have been compared with corresponding Earth-based lunar measurements. The comparison method involves the numerical fitting of theoretical photometric functions to both the astronomical and laboratory data. It is deduced that regolith material can, under favourable circumstances, maintain a very underdense structure (porosity of the surface layer greater than 90 per cent) in air, so that vacuum cold-welding is not essential in the formation of such a structure. Photometric scanning is shown to provide a rapid method of determining the effective porosity of regolith sample surfaces in the laboratory.",
author = "L. Wilson",
year = "1973",
month = jan,
doi = "10.1016/0032-0633(73)90023-8",
language = "English",
volume = "21",
pages = "113--118",
journal = "Planetary and Space Science",
issn = "0032-0633",
publisher = "Elsevier Limited",
number = "1",

}

RIS

TY - JOUR

T1 - A photometric investigation of the packing state of apollo 11 lunar regolith samples

AU - Wilson, L.

PY - 1973/1

Y1 - 1973/1

N2 - The angular light scattering properties of an Apollo 11 lunar regolith 'fines' sample have been determined experimentally for both flat and undulating sample surface preparations. The light scattering curves, whose shapes are known to be a function of the porosity and slope distribution of the measured surface, have been compared with corresponding Earth-based lunar measurements. The comparison method involves the numerical fitting of theoretical photometric functions to both the astronomical and laboratory data. It is deduced that regolith material can, under favourable circumstances, maintain a very underdense structure (porosity of the surface layer greater than 90 per cent) in air, so that vacuum cold-welding is not essential in the formation of such a structure. Photometric scanning is shown to provide a rapid method of determining the effective porosity of regolith sample surfaces in the laboratory.

AB - The angular light scattering properties of an Apollo 11 lunar regolith 'fines' sample have been determined experimentally for both flat and undulating sample surface preparations. The light scattering curves, whose shapes are known to be a function of the porosity and slope distribution of the measured surface, have been compared with corresponding Earth-based lunar measurements. The comparison method involves the numerical fitting of theoretical photometric functions to both the astronomical and laboratory data. It is deduced that regolith material can, under favourable circumstances, maintain a very underdense structure (porosity of the surface layer greater than 90 per cent) in air, so that vacuum cold-welding is not essential in the formation of such a structure. Photometric scanning is shown to provide a rapid method of determining the effective porosity of regolith sample surfaces in the laboratory.

U2 - 10.1016/0032-0633(73)90023-8

DO - 10.1016/0032-0633(73)90023-8

M3 - Journal article

AN - SCOPUS:49349132299

VL - 21

SP - 113

EP - 118

JO - Planetary and Space Science

JF - Planetary and Space Science

SN - 0032-0633

IS - 1

ER -