Engineering topics
Publications and source records attributed to Turkevich, A..
Hard lander missions to asteroids are examined using the Westphal penetrator study as a basis. Imagery and chemical information are considered to be the most significant science to be obtained. The latter, particularly a detailed chemical analysis performed on an uncontaminated sample, may answer questions about the relationships of asteroids to meteorites and the place of asteroids in theories of the formation of the solar system.
Prime data from chemical analysis experiments, of Surveyor 5, 6, and 7 are critically examined and analyzed. This and associated laboratory work has given final chemical composition results for the lunar regolith at three locations. The conclusions made on the basis of the preliminary examinations of the data are confirmed and extended.
Neutron activation analysis of Apollo 11 lunar fines, determining Pb 204, U, Bi and Tl contents
Solar flare proton induced radioactivity in Apollo 11 lunar surface material compared with stony meteorite data, noting cobalt 56 concentration
Bogou iron meteorite Ni-Cu-Zn contents determined by radiochemical methods
Evidence from comparison with stony meteorites of solar flare proton induced radioactivity in Apollo 11 lunar rocks
Lunar surface chemical analysis using interaction of monoenergetic alpha particles with matter
Surveyor I spacecraft photographs evaluated for lunar surface topography
Method for chemical analysis of lunar surface by use of alpha particles and development of procedures for alpha-scattering experiment on lunar vehicle
Instrument for lunar surface chemical analysis that uses interactions with matter of monoenergetic alpha particles
Instrument automatically performs a nondestructive chemical analysis of surfaces and transmits the data in the form of electronic signals. It employs solid-state nuclear particle detectors with a charged nuclear particle source and an electronic pulse-height analyzer.
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