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the ldef ultra heavy cosmic ray experimentThe Long Duration Exposure Facility (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 4 pressure vessels (3 experiment tray). 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 2000 cosmic ray nuclei with Z greater than 65 were collected, including the world's first statistically significant sample of actinides. Postflight work to date and the current status of the experiment are reviewed. Provisional results from analysis of preflight and postflight calibrations are presented.
Document ID
19910015680
Document Type
Conference Paper
Authors
Osullivan, D.
(Dublin Inst. for Advanced Studies (Ireland). ESTEC, Noordwijk (Netherlands)., United States)
Thompson, A.
(Dublin Inst. for Advanced Studies (Ireland). ESTEC, Noordwijk (Netherlands)., United States)
Bosch, J.
(Dublin Inst. for Advanced Studies (Ireland). Bellaterra, Spain)
Keegan, R.
(Dublin Inst. for Advanced Studies (Ireland).)
Wenzel, K.-P.
(European Space Agency. European Space Research and Technology Center)
Smit, A.
(European Space Agency. European Space Research and Technology Center)
Domingo, C.
(Universidad Autonoma de Barcelona)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Publication Information
Publication: NASA, Langley Research Center, First LDEF Post-Retrieval Symposium Abstracts
Subject Category
SPACE RADIATION
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19910015658Analytic PrimaryFirst LDEF Post-Retrieval Symposium abstracts