Encyclopedia Astronautica
1962.09.07 - Effect of radiation from Operation Dominic on Mercury MA-8


The results of a joint study by the Atomic Energy Commission, the Department of Defense, and NASA concerning the possible harmful effects of the artificial radiation belt created by Operation Dominic on Project Mercury's flight MA-8 were announced.

The study predicted that radiation on outside of capsule during astronaut Walter M. Schirra's six-orbit flight would be about 500 roentgens but that shielding, vehicle structures, and flight suit would reduce this dosage down to about 8 roentgens on the astronaut's skin. This exposure, well below the tolerance limits previously established, would not necessitate any change of plans for the MA-8 flight.

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