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Cosmic radiation exposure of biological test systems during the EXPOSE-R mission

Berger, Thomas and Hajek, Michael and Bilski, Pawel and Reitz, Günther (2014) Cosmic radiation exposure of biological test systems during the EXPOSE-R mission. International Journal of Astrobiology, pp. 27-32. Cambridge University Press. DOI: 10.1017/S1473550414000548 ISSN 1473-5504

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1017/S1473550414000548

Abstract

In the frame of the EXPOSE-R mission outside the Russian Zvezda Module of the International Space Station (ISS) passive thermoluminescence dosimeters were applied to measure the radiation exposure of biological samples. The detectors were located beneath the sample carriers to determine the dose levels for maximum shielding. The dose measured beneath the sample carriers varied between 317 ± 10 and 230 ± 2 mGy, which amount to an average dose rate of 381 ± 12 and 276 ± 2 μGy d⁻¹. These values are close to those assessed for the interior of the ISS and reflect the high shielding of the biological experiments within the EXPOSE-R facility. As a consequence of the high shielding (several g cm⁻²), the biological samples were predominantly exposed to galactic cosmic heavy ions and trapped protons in the Earth's radiation belts, whereas the trapped electrons did not reach the samples.

Item URL in elib:https://elib.dlr.de/91497/
Document Type:Article
Title:Cosmic radiation exposure of biological test systems during the EXPOSE-R mission
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Berger, ThomasRadiation Biology Department, German Aerospace Center (DLR), Institute of Aerospace Medicine, Cologne, Germany; thomas.berger (at) dlr.deUNSPECIFIED
Hajek, MichaelVienna University of Technology, Institute of Atomic and Subatomic Physics (ATI), Vienna, Austria; International Atomic Energy Agency, Division of Radiation, Transport and Waste Safety, 1400 Vienna, AustriaUNSPECIFIED
Bilski, PawelDepartment of Radiation Physics and Dosimetry, Institute of Nuclear Physics (IFJ), Krakow, PolandUNSPECIFIED
Reitz, GüntherRadiation Biology Department, German Aerospace Center (DLR), Institute of Aerospace Medicine, Cologne, GermanyUNSPECIFIED
Date:2014
Journal or Publication Title:International Journal of Astrobiology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1017/S1473550414000548
Page Range:pp. 27-32
Publisher:Cambridge University Press
ISSN:1473-5504
Status:Published
Keywords:dosimetry, EXPOSE-R, passive radiation detectors, space radiation, thermoluminescence detectors
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Strahlenbiologie
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:13 Nov 2014 11:44
Last Modified:22 Sep 2015 10:33

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