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Cosmogenic neutron-capture-produced nuclides in stony meteoritesThe complete neutron-flux results and production rates for Cl-36, Ni-59, and Co-60 in stony meteorites of various radii and composition are presented. The relative neutron source strengths and neutron production-versus-depth profiles were determined by using calculated H-3 production rates. The absolute source strengths were normalized to that determined for the moon by Woolum et al. (1975). The energy spectrum of the source neutrons and the neutron transport calculations, which employed the ANISN computer code, were similar to those used for the moon by Lingenfelter et al. (1972). The production rates of the three radionuclides were determined as a function of depth in various spherical meteoroids from the calculated equilibrium neutron-flux distributions and from energy-dependent neutron-capture cross sections. Rates for producing these radionuclides by spallation reactions were also calculated.
Document ID
19860049988
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Spergel, M. S.
(York College New York, United States)
Reedy, R. C.
(Los Alamos National Laboratory NM, United States)
Lazareth, O. W.
(York Coll. Jamaica, NY, United States)
Levy, P. W.
(York Coll. Jamaica, NY, United States)
Slatest, L. A.
(Brookhaven National Laboratory Upton, NY, United States)
Date Acquired
August 12, 2013
Publication Date
March 30, 1986
Publication Information
Publication: Journal of Geophysical Research
Volume: 91
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
86A34726
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-14084
CONTRACT_GRANT: DE-AC02-76CH-00016
CONTRACT_GRANT: NSG-7454
Distribution Limits
Public
Copyright
Other

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