ArticlesOther Physical Properties

Luminescence of Apollo 11 Lunar Samples

Science  30 Jan 1970:
Vol. 167, Issue 3918, pp. 720-721
DOI: 10.1126/science.167.3918.720


Luminescence measurements were made of four lunar rocks, two terrestrial rocks (granite and gabbro), and one terrestrial mineral (willemite) by comparing the spectral curves with the curve of a barium sulfate standard. Efficiencies with 3000 angstrom excitation were < 6 x 10-5 for the lunar samples, < 8 x 10-5 for gabbro of very similar composition to the lunar samples, approximately 10-4 for granite, and approximately 2 X 10-2 for willemite. If these are typical values for other ultraviolet excitation wavelengths, the Apollo 11 site appears to contribute little to the observed lunar luminescence.