Charged-particle radiation environment for the Spacelab and other missions in low Earth orbit, revision A

Technical Report · Mon Nov 29 04:00:00 EST 1976

OSTI ID:7220720

Watts, Jr, J W; Wright, J J

The physical charged particle dose to be encountered in low earth orbit Spacelab missions is estimated for orbits of inclinations from 28.5 to 90 deg and altitudes from 200 to 800 km. The dose encountered is strongly altitude dependent, with a weaker dependence on inclination. Doses range from 0.007 rads/day at 28.5 deg and 200 km to 1.57 rads/day at 28.5 deg and 800 km behind a 5.0 g//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.

• Research Organization: National Aeronautics and Space Administration, Huntsville, AL (USA). George C. Marshall Space Flight Center
• OSTI ID: 7220720
• Report Number(s): N-77-16979; NASA-TM-X-73358
• Country of Publication: United States
• Language: English

Related Subjects

640203* -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALTITUDE
BARYONS
CHARGED PARTICLES
COSMIC RADIATION
DOSE RATES
DOSES
EARTH PLANET
ELEMENTARY PARTICLES
FERMIONS
HADRONS
IONIZING RADIATIONS
NUCLEONS
PLANETS
PROTONS
RADIATION BELTS
RADIATION DOSES
RADIATIONS