Overview on experience to date on human exposure to space radiations

Details Overview on experience to date on human exposure to space radiations Overview on experience to date on human exposure to space radiations

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14..397p&link_type=abstract

Advances in Space Research, Volume 14, Issue 10, p. 397-408.

Physics

2

Scientific paper

The human exposure in space depends on the three factors: the flight trajectory, its date and duration and the cyclogram of the cosmonaut's activities. In the near-Earth orbits the daily dose varies within the limits of (1.5-5.0) . 10-4Gy. day-1 and greatly increases if the altitude increases. The mean daily quality factor is 1.6-2.0. Strong solar proton events in the orbits with the inclination of < 52° result in the dose rate increase up to 2-3 cGy day.-1 On the surface of the orbital spacecrafts the daily dose reaches 2 Gy. The neutron dose depends on the shielding mass distribution varying within the limits of 6%-30% of the charged particles dose. In deep space the dose is mainly formed by the galactic and solar cosmic rays (GCR, SCR). Behind the shielding of 2-3 g.cm-2 Al the GCR dose varies in the range of (20-30) . 10-5Gy.day-1. The SCR dose can reach hundreds of cSv.

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