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Astronaut’s Organ Doses Inferred from Measurements in a Human Phantom Outside the International Space Station

Reitz, Guenther and Berger, Thomas and Bilski, Pawel and Facius, Rainer and Hajek, Michael and Petrov, Vladislav and Puchalska, Monika and Zhou, Dazhuang and Bossler, Johannes and Akatov, Yury and Shurshakov, Vyacheslav and Olko, Pawel and Ptaszkiewicz, Marta and Bergmann, Robert and Fugger, Manfred and Vana, Norbert and Beaujean, Rudolf and Burmeister, Soenke and Bartlett, David and Hager, Luke and Pálfalvi, József and Szabó, Julianna and O’Sullivan, Denis and Kitamura, Hisashi and Uchihori, Yukio and Yasuda, Nakahiro and Nagamatsu, Aiko and Tawara, Hiroko and Benton, Eric and Gaza, Ramona and McKeever, Stephen and Sawakuchi, Gabriel and Yukihara, Eduardo and Cucinotta, Francis and Semones, Edward and Zapp, Neal and Miller, Jack and Dettmann, Jan (2009) Astronaut’s Organ Doses Inferred from Measurements in a Human Phantom Outside the International Space Station. Radiation Research, 171 (2), pp. 225-235. Radiation Research Society. DOI: 10.1667/RR1559.1.

Full text not available from this repository.

Abstract

Space radiation hazards are recognized as a key concern for human space flight. For long-term interplanetary missions, they constitute a potentially limiting factor since current protection limits for low-Earth orbit missions may be approached or even exceeded. In such a situation, an accurate risk assessment requires knowledge of equivalent doses in critical radiosensitive organs rather than only skin doses or ambient doses from area monitoring. To achieve this, the MATROSHKA experiment uses a human phantom torso equipped with dedicated detector systems. We measured for the first time the doses from the diverse components of ionizing space radiation at the surface and at different locations inside the phantom positioned outside the International Space Station, thereby simulating an extravehicular activity of an astronaut. The relationships between the skin and organ absorbed doses obtained in such an exposure show a steep gradient between the doses in the uppermost layer of the skin and the deep organs with a ratio close to 20. This decrease due to the body self-shielding and a concomitant increase of the radiation quality factor by 1.7 highlight the complexities of an adequate dosimetry of space radiation. The depth-dose distributions established by MATROSHKA serve as benchmarks for space radiation models and radiation transport calculations that are needed for mission planning.

Document Type:Article
Title:Astronaut’s Organ Doses Inferred from Measurements in a Human Phantom Outside the International Space Station
Authors:
AuthorsInstitution or Email of Authors
Reitz, GuentherUNSPECIFIED
Berger, ThomasUNSPECIFIED
Bilski, PawelInstitute of Nuclear Physics, Krakow, Poland
Facius, RainerUNSPECIFIED
Hajek, MichaelAtomic Institute of the Austrian Universities, Vienna, Austria
Petrov, VladislavInstitute for Biomedical Problems, Moscow, Russian Federation
Puchalska, MonikaInstitute of Nuclear Physics, Krakow, Poland
Zhou, DazhuangNASA Johnson Space Center, NASA,Houston, Texas; Universities Space Research Association, Houston, Texas
Bossler, JohannesUNSPECIFIED
Akatov, YuryInstitute for Biomedical Problems, Moscow, Russian Federation
Shurshakov, VyacheslavInstitute for Biomedical Problems, Moscow, Russian Federation
Olko, PawelInstitute of Nuclear Physics, Krakow, Poland
Ptaszkiewicz, MartaInstitute of Nuclear Physics, Krakow, Poland
Bergmann, RobertAtomic Institute of the Austrian Universities, Vienna, Austria
Fugger, ManfredAtomic Institute of the Austrian Universities, Vienna, Austria
Vana, NorbertAtomic Institute of the Austrian Universities, Vienna, Austria
Beaujean, RudolfChristian-Albrechts Universität Kiel, Kiel, Germany
Burmeister, SoenkeChristian-Albrechts Universität Kiel, Kiel, Germany
Bartlett, DavidHealth Protection Agency, Chilton, United Kingdom
Hager, LukeHealth Protection Agency, Chilton, United Kingdom
Pálfalvi, JózsefAtomic Energy Research Institute, Budapest, Hungary
Szabó, JuliannaAtomic Energy Research Institute, Budapest, Hungary
O’Sullivan, DenisDublin Institute for Advanced Studies, Dublin, Ireland
Kitamura, HisashiNational Institute of Radiological Sciences, Chiba, Japan
Uchihori, YukioNational Institute of Radiological Sciences, Chiba, Japan
Yasuda, NakahiroNational Institute of Radiological Sciences, Chiba, Japan
Nagamatsu, AikoJapan Aerospace Exploration Agency, Tsukuba, Japan
Tawara, HirokoHigh Energy Accelerator Research Organization, Tsukuba, Japan
Benton, EricOklahoma State University, Stillwater, Oklahoma
Gaza, RamonaOklahoma State University, Stillwater, Oklahoma; NASA Johnson Space Center, NASA,Houston, Texas
McKeever, StephenOklahoma State University, Stillwater, Oklahoma
Sawakuchi, GabrielOklahoma State University, Stillwater, Oklahoma
Yukihara, EduardoOklahoma State University, Stillwater, Oklahoma
Cucinotta, FrancisNASA Johnson Space Center, NASA,Houston, Texas
Semones, EdwardNASA Johnson Space Center, NASA,Houston, Texas
Zapp, NealNASA Johnson Space Center, NASA,Houston, Texas
Miller, JackLawrence Berkeley National Laboratory, Berkeley, California
Dettmann, JanEuropean Space Agency, Noordwijk, The Netherlands
Date:2009
Journal or Publication Title:Radiation Research
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:171
DOI:10.1667/RR1559.1
Page Range:pp. 225-235
Publisher:Radiation Research Society
Status:Published
Keywords:Radiation Research, Human Space Flight, Ionizing Space Radiation, Human Phantom, ISS
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Strahlenbiologie (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kerstin Kopp
Deposited On:09 Feb 2009
Last Modified:04 Apr 2013 16:13

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