Accession Number : AD0745188

Title :   High-Z Particle Cosmic-Ray Exposure of Apollo 8-14 Astronauts.

Descriptive Note : Technical rept. Nov 61-Dec 71,

Corporate Author : SAN FRANCISCO UNIV CALIF DEPT OF PHYSICS

Personal Author(s) : Benton,E. V. ; Henke,R. P.

Report Date : JUN 1972

Pagination or Media Count : 44

Abstract : On Apollo missions that individual astronauts' high Z particle exposure was measured by means of Lexan foils located in the passive dosimetry packs carried on the chest, thigh, and ankle of each astronaut. The report deals with measurements obtained on Apollo flights 8-14. Data is presented on the high Z track fluences, the stopping particle densities, and the particle integral LET spectra. The LET spectra, in turn, are used to calculate the fractional cell loss, FCL, of the human kidney (Tl) cells arising from the high Z particle exposure. The measurements, on subsequent missions, show a consistent and a significant increase in the observed high Z particle exposure. (Author)

Descriptors :   (*ASTRONAUTS, DOSE RATE), (*SPACE ENVIRONMENTS, COSMIC RAYS), (*MANNED SPACECRAFT, RADIATION HAZARDS), LUNAR CRAFT, RADIATION MEASURING INSTRUMENTS, CURVE FITTING, GRAPHICS

Subject Categories : Radiobiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE