The LDEF ultra heavy cosmic ray experiment

Details The LDEF ultra heavy cosmic ray experiment The LDEF ultra heavy cosmic ray experiment

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ldef.symp..367o&link_type=abstract

In NASA. Langley Research Center, LDEF: 69 Months in Space. First Post-Retrieval Symposium, Part 1 p 367-375 (SEE N92-23280 14-9

Physics

Cosmic Rays, Energy Spectra, Heavy Nuclei, Long Duration Exposure Facility, Solid State Devices, Temperature Dependence, Pressure Vessels, Radiation Dosage, Stacks, Temperature Control, Trays

Scientific paper

The 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.

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