Charged particle radiation environment for the spacelab and other missions in low earth orbit
Technical Report
·
OSTI ID:7342535
The physical charged-particle dose encountered in low earth orbit missions was estimated for orbits of inclinations from 28.5/sup 0/ to 90/sup 0/ and altitudes from 200 to 800 km. Results indicate that the dose encountered is strongly altitude dependent, with a weaker dependence on inclination. Doses range from 0.006 rads/day at 28.5/sup 0/ and 200 km to 2.5 rads/day at 28.5/sup 0/ and 800 km behind a 5.0 g/cm/sup 2/ shield. Geomagnetically trapped protons were the primary source of damage over most of the range of altitudes and inclinations, with galactic cosmic rays making a significant contribution at the lowest altitudes. (auth)
- Research Organization:
- National Aeronautics and Space Administration, Huntsville, Ala. (USA). George C. Marshall Space Flight Center
- OSTI ID:
- 7342535
- Report Number(s):
- N-75-28001; NASA-TM-X-64936
- Country of Publication:
- United States
- Language:
- English
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