NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Hydrogen and fluorine in the surfaces of lunar samplesThe resonant nuclear reaction F-19(p, alpha gamma)O-16 has been used to perform depth-sensitive analyses for both fluorine and hydrogen in lunar samples. The resonance at 0.83 MeV (center-of-mass) in this reaction has been applied to the measurement of the distribution of trapped solar protons in lunar samples to depths up to 0.45 microns. These results are interpreted in terms of terrestrial H2O surface contamination and of a redistribution of the implanted solar H which has been influenced by heavy radiation damage in the surface region. Results are also presented for an experiment to test the penetration of H2O into laboratory glass samples which have been irradiated with O-16 to simulate the radiation-damaged surfaces of lunar glasses. Fluorine determinations have been performed in a 1-micron surface layer on lunar samples using the same F-19(p, alpha gamma)O-16 resonance. The data are discussed from the standpoint that observed fluorine concentrations are a mixture of true lunar fluorine and Teflon contamination.
Document ID
19750055584
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Leich, D. A.
Goldberg, R. H.
Burnett, D. S.
Tombrello, T. A.
(California Institute of Technology Pasadena, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Subject Category
Lunar And Planetary Exploration
Meeting Information
Meeting: Lunar Science Conference
Location: Houston, TX
Start Date: March 18, 1974
End Date: March 22, 1974
Accession Number
75A39656
Funding Number(s)
CONTRACT_GRANT: NSF GP-28027
CONTRACT_GRANT: NGR-05-002-333
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available