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

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

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Kurzfassung

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.

Dokumentart:Zeitschriftenbeitrag
Titel:Astronaut’s Organ Doses Inferred from Measurements in a Human Phantom Outside the International Space Station
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Reitz, GuentherNICHT SPEZIFIZIERT
Berger, ThomasNICHT SPEZIFIZIERT
Bilski, PawelInstitute of Nuclear Physics, Krakow, Poland
Facius, RainerNICHT SPEZIFIZIERT
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, JohannesNICHT SPEZIFIZIERT
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
Datum:2009
Erschienen in:Radiation Research
Referierte Publikation:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:171
DOI :10.1667/RR1559.1
Seitenbereich:Seiten 225-235
Verlag:Radiation Research Society
Status:veröffentlicht
Stichwörter:Radiation Research, Human Space Flight, Ionizing Space Radiation, Human Phantom, ISS
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W FR - Forschung unter Weltraumbedingungen (alt)
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W FR - Forschung unter Weltraumbedingungen
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Strahlenbiologie (alt)
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Luft- und Raumfahrtmedizin > Strahlenbiologie
Hinterlegt von: Kerstin Kopp
Hinterlegt am:09 Feb 2009
Letzte Änderung:04 Apr 2013 16:13

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