NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Neutron capture time scale of the s-process, estimated from s-process krypton in a meteoriteA krypton fraction enriched in s-process isotopes was extracted from a mineral fraction of the Murchison C2 chondrite. The (Kr-86)/(Kr-84) ratio is enhanced by 6 standard deviations, showing that significant amounts of Kr-86 were made in the s-process, despite the short, 10.8 yr beta-decay half-life of its precursor, Kr-85. Judging from this sample, the mean neutron capture time in the s-process was on the order of 5-100 yr for nuclei with cross sections of 125 mb.
Document ID
19800050983
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Matsuda, J.-I.
(Chicago Univ. Chicago, IL, United States)
Lewis, R. S.
(Chicago Univ. Chicago, IL, United States)
Anders, E.
(Chicago, University Chicago, Ill., United States)
Date Acquired
August 10, 2013
Publication Date
April 1, 1980
Publication Information
Publication: Astrophysical Journal
Subject Category
Lunar And Planetary Exploration
Accession Number
80A35153
Funding Number(s)
CONTRACT_GRANT: NGL-14-001-010
Distribution Limits
Public
Copyright
Other

Available Downloads

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