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Alpha-particle spectrometer experimentObservation of lunar radon emanation during the Apollo 15 and 16 missions shows the existence of areas with locally high emanation rates. The most conspicuous Rn-222 feature found in the data analysis is a region that includes Aristarchus Crater. The excess emanating power of the Aristarchus region may be an indication of internal activity at that site. There are regions with anomalously high rates of Po-210 activity, which indicates transient phenomena involving the release of Rn-222 gas from certain areas of the moon.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Gorenstein, P.
(American Science and Engineering, Inc. Cambridge, MA, United States)
Bjorkholm, P.
(American Science and Engineering, Inc. Cambridge, MA, United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Publication Information
Publication: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.
Subject Category
Instrumentation And Photography
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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