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first biological and dosimetric results of the free flyer biostack experiment ao015 on ldefThe main objectives of the Biostack Experiment are to study the effectiveness of the structured components of the cosmic radiation to bacterial spores, plant seeds, and animal cysts for a long duration spaceflight and to get dosimetric data such as particle fluences and spectra and total doses for the Long Duration Exposure Facility orbit. The configuration of the experiment packages allows the localization of the trajectory of the particles in each biological layer and to correlate the potential biological impairment or injury with the physical characteristics of the responsible particle. Although the Biostack Experiment was designed for a long duration flight of only nine months, most of the biological systems show a high hatching or germination rate. Some of the first observations are an increase of the mutation rate of embryonic lethals in the second generation of Arabidopsis seeds, somatic mutations, and a reduction of growth rates of corn plants and a reduction of life span of Artemia salina shrimps. The different passive detector systems are also in a good shape and give access to a proper dosimetric analysis. The results are summarized, and some aspects of future analysis are shown.
Document ID
19910015782
Document Type
Conference Paper
Authors
Reitz, G.
(Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt Cologne (Germany, F.R.)., United States)
Buecker, H.
(Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt Cologne (Germany, F.R.)., United States)
Facius, R.
(Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt Cologne (Germany, F.R.)., United States)
Horneck, G.
(Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt Cologne (Germany, F.R.)., United States)
Schaeffer, M.
(Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt Cologne (Germany, F.R.)., United States)
Schott, J. U.
(Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt Cologne (Germany, F.R.)., United States)
Bayonove, J.
(Montpellier-2 Univ. (France) F.R.)., United States)
Beaujean, R.
(Kiel Univ. (Germany CA., United States)
Benton, E. V.
(San Francisco Univ.)
Delpoux, M.
(Toulouse Univ.)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Publication Information
Publication: NASA, Langley Research Center, First LDEF Post-Retrieval Symposium Abstracts
Subject Category
LIFE SCIENCES (GENERAL)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19910015658Analytic PrimaryFirst LDEF Post-Retrieval Symposium abstracts