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Apollo Personal Radiation Dosimeter (APRD) |
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This particular instrument made it
to the moon and back as part of the Apollo space program.
It is an integrating tissue-equivalent ionization chamber, used to estimate the dose to the skin, and was carried by the crew in a pocket on the left thigh. They were manufactured by General Dynamics Three passive devices (TLDs) were also worn by each crewman: one at the ankle, one at the thigh, and one on the chest. |
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Average skin doses in ranged from 0.16 rad for Apollo 7 and 8 to 1.14 rad for Apollo 14. Significantly higher doses (e.g., 1000 rad to the skin) were possible if a major solar flare had occurred during these missions. For additional information see Radiation Dosimetry for Manned Space Flight by Richmond et al in Protection Against Space Radiation Proceedings of the 13th annual meeting of the American Nuclear Society, June 11-15, 1967. NASA SP-169 (ANS-SD-5) |
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| On loan from NASA, Johnson Space Center | |||
