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Apollo 15 X-ray fluorescence experimentThe X-ray fluorescence spectrometer, carried in the SIM bay of the command service module was employed principally for compositional mapping of the lunar surface while in lunar orbit, and secondarily, for X-ray astronomical observations during the trans-earth coast. The lunar surface measurements involved observations of the intensity and characteristics energy distribution of the secondary or fluorescent X-rays produced by the interaction of solar X-rays with the lunar surface. The astronomical observations consisted of relatively long periods of measurements of X-rays from pre-selected galactic sources such as Cyg-X-1 and Sco X-1 as well as from the galactic poles.
Document ID
19720003291
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Adler, I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Trombka, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gerard, J. (Natl. Acad. of Sci. Washington, D. C., United States)
Schmadebeck, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lowman, P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Blodgett, H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Yin, L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Eller, E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lamothe, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gorenstein, P. (Am. Sci. and Eng.)
Date Acquired
September 2, 2013
Publication Date
October 1, 1971
Subject Category
Space Vehicles
Report/Patent Number
X-641-71-421
NASA-TM-X-65726
Accession Number
72N10940
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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