The MATROSHKA experiment: depth dose distribution derived from TLD measurements
- Paper number
IAC-08.A1.4.2
- Author
Dr. Michael Hajek, Vienna University of Technology, Austria
- Coauthor
Dr. Thomas Berger, German Aerospace Center (DLR), Germany
- Coauthor
Dr. Pawel Bilski, Institute of Nuclear Physics, Polish Academy of Sciences, Poland
- Coauthor
Dr. Yuri A. Akatov, Institute of Biomedical Problems (IBMP), Russia
- Coauthor
Dr. Aiko Nagamatsu, Japan Aerospace Exploration Agency (JAXA), Japan
- Coauthor
Mr. Edward J. Semones, NASA Johnson Space Center (NASA-JSC), United States
- Coauthor
Dr. Nakahiro Yasuda, National Institute of Radiological Sciences (NIRS), Japan
- Coauthor
Dr. Eduardo G. Yukihara, Oklahoma State University (OSU), United States
- Coauthor
Dr. Günther Reitz, German Aerospace Center (DLR), Germany
- Year
2008
- Abstract
The ongoing assembly and maintenance activities at the International Space Station (ISS) require a significant amount of astronaut extravehicular activity (EVA)—as can be expected from future missions to establish, e.g., a permanent presence on the Moon. Assessment of health risks to astronaut crews associated with the increased exposure to cosmic radiation is dependent on reliable estimates of the dose distribution within the human body. The European Space Agency (ESA) anthropomorphic phantom MATROSHKA accommodates more than 4,800 passive thermoluminescence (TL) detectors to determine the skin, the organ-specific and the whole-body depth dose profile. These radiation sensors were provided and read out by eight institutions in just as many countries. Dosimetric data evaluated by the individual laboratories for extravehicular exposure of the MATROSHKA facility (attached to the outer hull of the ISS Russian Segment) were compiled to yield a detailed depth dose distribution over the whole phantom body. The discussion will include also skin and organ doses derived from TL dosimeter measurements, along with addressing physical characteristics of the employed luminescence phosphors, such as TL efficiency for different components of the cosmic-ray environment.
- Abstract document
- Manuscript document
IAC-08.A1.4.2.pdf (🔒 authorized access only).
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