Cosmic-ray tracks in plastics: the apollo helmet dosimetry experiment.
Counts of tracks from heavy cosmic-ray nuclei in helmets from Apollo missions 8 and 12 show variations caused by solar modulation of the galactic cosmic-ray flux. Specific estimates of the biological damage to certain nonreplaceable cells by track-forming particles during these space missions indicate that the fraction of deactivated cells could range from a lower limit of 3 x 10(-7) to an upper limit of 1.4 x 10(-4).
Comstock
G M
GM
Fleischer
R L
RL
Giard
W R
WR
Hart
H R
HR
Nichols
G E
GE
Price
P B
PB