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Matroshka DOSTEL measurements onboard the International Space Station (ISS)

Labrenz, Johannes and Burmeister, Soenke and Berger, Thomas and Heber, Bernd and Reitz, Guenther (2015) Matroshka DOSTEL measurements onboard the International Space Station (ISS). Journal of Space Weather and Space Climate, 5, A38. EDP Sciences. DOI: 10.1051/swsc/2015039 ISSN 2115-7251

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Official URL: http://dx.doi.org/10.1051/swsc/2015039

Abstract

This paper presents the absorbed dose and dose equivalent rate measurements achieved with the DOSimetry TElescope (DOSTEL) during the two Matroshka (MTR) experiment campaigns in 2004/2005 (MTR-1) and 2007/2008 (MTR-2B). The comparison between the inside (MTR-2B) and outside (MTR-1) mission has shown that the shielding thickness provided by the International Space Station (ISS) spacecraft hull has a minor effect on the radiation exposure caused by Galactic Cosmic Rays (GCR). The exposure varies with the solar modulation of the GCR, too. Particles from Earth’s radiation belts are effectively shielded by the spacecraft hull, and thus the contribution to the radiation exposure is lower for the inside measurement during MTR-2B. While the MTR-DOSTEL absorbed dose rate shows a good agreement with passive detectors of the MTR experiment for the MTR-2B mission phase, the MTR-1 absorbed dose rates from MTR-DOSTEL measurements are much lower than those obtained by a nearby passive detector. Observed discrepancies between the MTR-DOSTEL measurements and the passive detectors located nearby could be explained by the additional exposure to an enhanced flux of electrons trapped between L-parameter 2.5 and 3.5 caused by solar storms in July 2004.

Item URL in elib:https://elib.dlr.de/101825/
Document Type:Article
Title:Matroshka DOSTEL measurements onboard the International Space Station (ISS)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Labrenz, JohannesChristian-Albrechts-Universität zu Kiel, Christian-Albrechts-Platz, 24118 Kiel, Germany; labrenz (at) physik.uni-kiel.deUNSPECIFIED
Burmeister, SoenkeChristian-Albrechts-Universität zu Kiel, Christian-Albrechts-Platz, 24118 Kiel, GermanyUNSPECIFIED
Berger, ThomasGerman Aerospace Center (DLR), Institute of Aerospace Medicine, Linder Hoehe, 51147 Cologne, GermanyUNSPECIFIED
Heber, BerndChristian-Albrechts-Universität zu Kiel, Christian-Albrechts-Platz, 24118 Kiel, GermanyUNSPECIFIED
Reitz, GuentherGerman Aerospace Center (DLR), Institute of Aerospace Medicine, Linder Hoehe, 51147 Cologne, GermanyUNSPECIFIED
Date:2015
Journal or Publication Title:Journal of Space Weather and Space Climate
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:5
DOI :10.1051/swsc/2015039
Page Range:A38
Publisher:EDP Sciences
ISSN:2115-7251
Status:Published
Keywords:Galactic cosmic rays, Radiation belts, Dosimetry, International Space Station, Matroshka
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, R - Projekt ISS Nutzung in der Biodiagnostik
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:13 Jan 2016 14:46
Last Modified:10 Mar 2016 10:49

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