Future Scenario of the Space Radiation Research Using Space Environment

DOI:10.15011//jasma.34.340203
Int. J. Microgravity Sci. Appl. 2017p340203
Author
A. TAKAHASHI, J. HIDEMA and H. YASUDA
Organization
Gunma University Heavy Ion Medical Center, Department of Environmental Life Sciences,Graduate School of Life Sciences, Tohoku University, Research Institute for Radiation Biology and Medicine, Hiroshima University
Abstract
Space radiation is one of the major hazards for human health in space. Space radiation consists of various kinds of radiation including high energy heavy (HZE) ions; these complex radiation fields cannot be produced on the ground. In the International Space Station (ISS), exposure doses are approximately 200 times higher than on the Earth’s surface. On the Moon and Mars, the radiation level is high, due to HZE ions. While the ISS is in free fall, the Moon has 1/6, Mars 1/3 of Earth's gravity. Many aspects of the biological effect of the combination of the lower gravity environment and space radiation remain unclear. But the future mission is now being planned to go to the Moon and Mars. It is necessary to clarify the problem of biological effect and physical dosimetry and then to resolve them as soon as possible. With this thought, here we try to present a scenario of space radiation research for next decades.
Keyword(s)
Space radiation, Dosimetry, Space exposure experiment, Risk assessment, Radiological protection
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Received 31 January 2017, Accepted 16 February 2017, Published 30 April 2017

© The Japan Society of Microgravity Applicaiton

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