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Ultraviolet investigations for lunar missions

January 1, 1966

Preliminary field tests of an active ultraviolet imaging system have shown that it is possible to produce linages of the terrain from distances as great as 75 feet by means of reflected ultraviolet light at wavelengths longer than 3300 A. Minerals that luminesce when exposed to ultraviolet energy have been detected from distances as great as 200 feet. With appropriate design modifications, it may be possible to utilize a similar system in detecting luminescing minerals from greater distances. Also, with a similar system and appropriate auxiliary equipment such as image intensifiers, it may be possible to discriminate between naturally occurring materials on the basis of reflected ultraviolet energy at wavelengths shorter than 3000 A. In this part of the spectrum image contrast for some rock types may exceed that from visible light. Information from these and related ultraviolet spectralanalysis studies may be useful in evaluating data obtained from passive ultraviolet systems in lunar orbit as well as from active systems on the lunar surface.

Publication Year 1966
Title Ultraviolet investigations for lunar missions
Authors William R. Hemphill, William A. Fischer, J.E. Dornbach
Publication Type Article
Publication Subtype Journal Article
Series Title Advances in Astronautical Sciences
Index ID 70112257
Record Source USGS Publications Warehouse
USGS Organization Earth Resources Observation and Science (EROS) Center