Radiation hazard of relativistic interstellar flight |
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Authors: | Oleg G Semyonov |
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Institution: | 1. Department of Chemical Engineering, Thammasat School of Engineering, Thammasat University, Pathumthani 12120, Thailand;2. Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan |
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Abstract: | From the point of view of radiation safety, interstellar space is not an empty void. Interstellar gas and cosmic rays, which consist of hydrogen and helium nucleons, present a severe radiation hazard to crew and electronics aboard a relativistic interstellar ship. Of the two, the oncoming relativistic flow of interstellar gas produces the most intense radiation. A protection shield will be needed to block relativistic interstellar gas that can also absorb most of the cosmic rays which, as a result of relativistic aberration, forms into a beamed flow propagating toward the front of the spaceship. |
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