Experiment ``Seeds'' on Biokosmos 9. Dosimetric part

Details Experiment ``Seeds'' on Biokosmos 9. Dosimetric part Experiment ``Seeds'' on Biokosmos 9. Dosimetric part

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12..355b&link_type=abstract

Advances in Space Research, Volume 12, Issue 2-3, p. 355-358.

Physics

Scientific paper

The aim of the experiment ``Seeds'' on the Sowjetic satellite Biokosmos 9 was the observation of mutagenic effects caused at special loci of seeds of Arabidopsis Thallana and assigned to particles of the Cosmic radiation. Two types of exposure units were flown: A low-shielding unit Type I, mounted at the surface of the satellite (1.4 g/cm2 shielding) and, for comparison, an identical item inside (16 g/cm2 shielding), using nuclear emulsion as track detectors. A Type II unit, flown inside (18g/cm2 shielding) was mounted with AgCl track detectors. The layout will be briefly described. A first set of dosimetric data from the physical evaluation of the experiment will be presented. The subdivision into charge- and LET - groups shows a rather high contribution of the intermediate LET-group (350-1000 MeV/cm) due to medium heavy particles (Z = 6 -10) and to enders of light (p,α) particles.

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