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Search for Xe-129 in mineral grains from Allende inclusions - An exercise in miniaturized rare gas analysisThe paper considers the use of a static mass spectrometer modified by installation of a Baur-Signer ion source and an ion-counting system to detect xenon from single grains from inclusions in the C3 meteorite Allende. The inferred iodine concentrations increased from pentlandite to melilite, but vary widely from one grain to another, indicating that the iodine resides in a minor phase which is included 'spottily' in the bulk phases. It is likely that the detectability for excess Xe achieved here could be improved; about 23,000 of fissiogenic Xe-132 was detected in the largest melelite sample analyzed, but it cannot be determined from this study whether the PU-244 is 'spotty' like I-129 or is uniformly distributed in the melilite.
Document ID
19800047148
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Reynolds, J. H.
(California Univ. Berkeley, CA, United States)
Lumpkin, G. R.
(California, University Berkeley, Calif., United States)
Jeffery, P. M.
(Western Australia, University Nedlands, Australia)
Date Acquired
August 10, 2013
Publication Date
March 1, 1980
Publication Information
Publication: Zeitschrift fuer Naturforschung
Subject Category
Lunar And Planetary Exploration
Accession Number
80A31318
Funding Number(s)
CONTRACT_GRANT: NGL-05-003-409
Distribution Limits
Public
Copyright
Other

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