Human Space Exploration and Radiation Exposure from EVA: 1981-2011

Details Human Space Exploration and Radiation Exposure from EVA: 1981-2011 Human Space Exploration and Radiation Exposure from EVA: 1981-2011

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh31b2016w&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH31B-2016

Astronomy and Astrophysics

Astrophysics

[2479] Ionosphere / Solar Radiation And Cosmic Ray Effects, [7513] Solar Physics, Astrophysics, And Astronomy / Coronal Mass Ejections, [7536] Solar Physics, Astrophysics, And Astronomy / Solar Activity Cycle, [4355] Natural Hazards / Miscellaneous

Scientific paper

There are several risks for any human space exploration endeavor. One such inevitable risk is exposure to the space radiation environment of which extra vehicular activity (EVA) demands more challenges due to limited amount of protection from space suit shielding. We recently compiled all EVA data comprising low-earth orbit (LEO) from Space Shuttle (STS) flights, International Space Station (ISS) expeditions, and Shuttle-Mir missions. Assessment of such radiation risk is very important, particularly for the anticipated long-term, deep-space human explorations in the near future. We present our assessment of anticipated radiation exposure and space radiation dose contribution to each crew member from a listing of 350 different EVA events resulting in more than 1000+ hrs of total EVA time. As of July 12, 2011, 197 astronauts have made spacewalks (out of 520 people who have gone into Earth orbit). Only 11 women have been on spacewalks.

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