Minimizing space radiation exposure during extra-vehicular activity
| Autor: | Mark Weyland, E.N. Zapp, T. Lin, M.J. Golightly, A. S. Johnson |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Solar proton
Atmospheric Science Meteorology business.industry Crew Aerospace Engineering Astronomy and Astrophysics Extra-vehicular activity Space radiation Proton (rocket family) Geophysics Space and Planetary Science Electron radiation International Space Station Trajectory General Earth and Planetary Sciences Environmental science Aerospace engineering business |
| Zdroj: | Advances in Space Research. 36:2524-2529 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/j.asr.2004.05.008 |
| Popis: | Continued assembly of the International Space Station (ISS) requires numerous extra-vehicular activities (EVAs). Prudent radiological safety practices require minimizing additional exposures to crewmen during these periods. The spatial distribution of the “normal” trapped proton and electron radiation sources in low Earth orbit is strongly governed by the geomagnetic field. It is possible to use ISS trajectory information to estimate crew exposures during EVAs and to identify periods that can result in minimal EVA crew exposures through avoidance of these trapped radiation regions. Such exposure minimization planning can also accommodate the unforeseen development of a solar proton event. An EVA exposure estimation tool, EVADOSE, is described and applied to various EVA exposure scenarios. Procedures and parameters that influence EVA exposures are discussed along with techniques to minimize crew exposures. |
| Databáze: | OpenAIRE |
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