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Collection, analysis, and archival of LDEF activation dataThe study of the induced radioactivity of samples intentionally placed aboard the Long Duration Exposure Facility (LDEF) and samples obtained from the LDEF structure is reviewed. The eight laboratories involved in the gamma-ray counting are listed and the scientists and the associated counting facilities are described. Presently, most of the gamma-ray counting has been completed and the spectra are being analyzed and corrected for efficiency and self absorption. The acquired spectra are being collected at Eastern Kentucky University for future reference. The results of these analyses are being compiled and reviewed for possible inconsistencies as well as for comparison with model calculations. These model calculations are being revised to include the changes in trapped-proton flux caused by the onset of the period of maximum solar activity and the rapidly decreasing spacecraft orbit. Tentative plans are given for the storage of the approximately 1000 gamma-ray spectra acquired in this study and the related experimental data.
Document ID
19930020442
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Laird, C. E. (University of Eastern Kentucky Richmond., United States)
Harmon, B. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Fishman, G. J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Parnell, T. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1993
Publication Information
Publication: NASA. Langley Research Center, LDEF: 69 Months in Space. Part 1: Second Post-Retrieval Symposium
Subject Category
Documentation And Information Science
Accession Number
93N29631
Funding Number(s)
CONTRACT_GRANT: NASA ORDER H-13029-D
CONTRACT_GRANT: NASA ORDER H-08071-D
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19930020432Collected WorksLDEF: 69 Months in Space. Part 1: Second Post-Retrieval Symposium
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