The ultra heavy cosmic ray experiment on the NASA long duration exposure facility

Details The ultra heavy cosmic ray experiment on the NASA long duration exposure facility The ultra heavy cosmic ray experiment on the NASA long duration exposure facility

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icrc....8..126o&link_type=abstract

International Cosmic Ray Conference, 18th, Bangalore, India, Aug. 22-Sept. 3, 1983, Paper. 7 p.

Physics

Nuclear Physics

Cosmic Rays, Nasa Programs, Spaceborne Experiments, Heavy Nuclei, Long Term Effects, Nuclear Fusion, Nuclei (Nuclear Physics), Space Transportation System

Scientific paper

The experiment is designed primarily to investigate the charge spectrum of cosmic ray nuclei with Z greater than or equal to 30. This is to be done by obtaining a larger sample of events than has hitherto been possible by balloon or satellite exposures. A very large array of solid state nuclear track detectors is to be exposed in space for approximately one year. Special emphasis will be placed on the relative abundances in the region where Z is greater than or equal to 65, which is thought to be dominated by r-process nucleosynthesis. Among the subsidiary objectives of the experiment are the study of the cosmic ray transition spectrum and a search for the postulated long-lived superheavy nucley (Z greater than or equal to 110) in the contemporary cosmic radiation. It is noted that the search for super-heavy nuclei is based on predicted half-lives that are short in comparison with the age of the earth but long in comparison with the age of cosmic rays. The far-reaching consequences for nuclear structure theory that the detection of such nuclei would have are noted.

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