Measurement of low energy cosmic rays aboard Spacelab-1

Details Measurement of low energy cosmic rays aboard Spacelab-1 Measurement of low energy cosmic rays aboard Spacelab-1

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....5..536b&link_type=abstract

In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 5 p 536 (SEE N85-34991 23-93)

Computer Science

Abundance, Angular Resolution, Chemical Composition, Detection, Energy Spectra, Galactic Cosmic Rays, Heavy Nuclei, Isotopes, Measuring Instruments, Particle Tracks, Primary Cosmic Rays, Rotation, Satellite-Borne Instruments, Cellulose Nitrate, Geomagnetism, Spacelab

Scientific paper

In December 1983 the first Spacelab mission was launched for a duration of 10 days. Aboard was the Kiel experiment Isotopic Stack designed for measurement of heavy cosmic ray nuclei with nuclear charge equal to or greater than 3 and energies up to some 100MeV/nuc. One part of the stack was rotated in well defined steps registered by an angle encoder to receive information on impact times of the nuclei. Using this time resolving system geomagnetically forbidden particles can be detected. The chemical composition and energy spectra of mainly CNO particles are examined using a rotated 300 microns m thick CR-39 foil beneath a fixed 100 microns m thick Kodak-Cellulose Nitrate foil. About 600 sq cm have been scanned yielding nearly 100 nuclear tracks within an energy range of approximately 8 to 30 MeV/nuc. The calibration is done by means of a postflight irradiation with 410 MeV/nuc Fe-56 at Berkeley Laboratory, California, USA. Relative abundances and energy spectra are presented.

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