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The LDEF ultra heavy cosmic ray experimentThe LDEF Ultra Heavy Cosmic Ray Experiment (UHCRE) used 16 side viewing LDEF trays giving a total geometry factor for high energy cosmic rays of 30 sq m sr. The total exposure factor was 170 sq m sr y. The experiment is based on a modular array of 192 solid state nuclear track detector stacks, mounted in sets of four in 48 pressure vessels. The extended duration of the LDEF mission has resulted in a greatly enhanced potential scientific yield from the UHCRE. Initial scanning results indicate that at least 1800 cosmic ray nuclei with Z greater than 65 were collected, including the world's first statistically significant sample of actinides. Post flight work to date and the current status of the experiment are reviewed.
Document ID
19920014063
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Osullivan, D. (Dublin Inst. for Advanced Studies (Ireland). Noordwijk (Netherlands)., United States)
Thompson, A. (Dublin Inst. for Advanced Studies (Ireland). Noordwijk (Netherlands)., United States)
Bosch, J. (Dublin Inst. for Advanced Studies (Ireland).)
Keegan, R. (Dublin Inst. for Advanced Studies (Ireland).)
Wenzel, K.-P. (European Space Research Lab.)
Smit, A. (European Space Research Lab.)
Domingo, C. (Barcelona Univ.)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Publication Information
Publication: NASA. Langley Research Center, LDEF: 69 Months in Space. First Post-Retrieval Symposium, Part 1
Subject Category
Space Radiation
Accession Number
92N23306
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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