1. Experiment "Seeds" on Biokosmos 9. Dosimetric part.
- Author
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Baican B, Schopper E, Wendnagel Th, Schott JU, and Heilman C
- Subjects
- Arabidopsis genetics, Germany, Mutation, Radiation Dosage, Radiation Monitoring, Radiation Protection, Radiometry, Silver Compounds, Spacecraft instrumentation, USSR, Arabidopsis radiation effects, Cosmic Radiation, Linear Energy Transfer, Seeds radiation effects, Space Flight
- Abstract
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 thaliana 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, alpha) particles.
- Published
- 1992
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