Accession Number : AD0698262

Title :   NUCLEAR EMULSION RECORDINGS OF HEAVY PRIMARIES ON APOLLO VII AND VIII.

Descriptive Note : Joint rept.,

Corporate Author : NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA

Personal Author(s) : Schaefer,Hermann J. ; Sullivan,Jeremiah J.

Report Date : 23 OCT 1969

Pagination or Media Count : 18

Abstract : Ilford G.5 emulsions in radiation packs carried by the astronauts in their space suits on the Earth-orbital mission Apollo VII and the first lunar mission Apollo VIII were scanned for tracks of heavy nuclei. As the 'microbeam' effects of heavy nuclei in living tissue center upon the high Z numbers, the scan was limited to Z numbers of 20 and higher. Greatly different fluxes are found on the two missions. The findings demonstrate the great difference in the make-up of the radiation environment in a near-Earth orbital and a deep-space mission and point out the need for a better understanding of the radiobiological significance of total body irradiation with heavy nuclei if the exposure status of an astronaut from accumulated exposures to the deep-space radiation environment is to be assessed accurately.

Descriptors :   (*MANNED SPACECRAFT, RADIATION HAZARDS), (*SPACE ENVIRONMENTS, CORRELATION TECHNIQUES), (*RADIATION DOSAGE, COSMIC RAYS), LUNAR CRAFT, NUCLEI, AEROSPACE MEDICINE, WHOLE BODY IRRADIATION, PHOTOGRAPHIC EMULSIONS, DOSIMETERS

Subject Categories : Atmospheric Physics
      Radiobiology
      Astronautics

Distribution Statement : APPROVED FOR PUBLIC RELEASE