Cosmic-ray-induced radiation environment and dose to man for low-orbit space applications

Details Cosmic-ray-induced radiation environment and dose to man for low-orbit space applications Cosmic-ray-induced radiation environment and dose to man for low-orbit space applications

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981stin...8226160s&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Artificial Satellites, Astronauts, Cosmic Rays, Earth Orbits, Radiation Hazards, Extraterrestrial Radiation, Radiation Shielding, Safety Factors

Scientific paper

Neutrons and photons resulting from the interaction of galactic cosmic rays with the material of an orbiting satellite or an orbiting space station at an altitude of some few hundreds of kilometers, and below the level of the radiation belts, were calculated as a function of geomagnetic latitude and solar activity level. The photon and neutron leakage currents from the top of the atmosphere were computed. The radiation dose-equivalent rate to an unshielded astronaut was also calculated. The maximum dose-equivalent rate, near the magnetic poles, was 2 mrem/h. In deep space this would amount to 18 rem/y, indicating that for a prolonged stay in space, shielding would be needed.

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