(2or
PERCENTHGE LIFE SPHN SHORTENING
PERCENTAGE LIFE SPAN SHORTENING
X- RAND GRMMA-RAYS
PURATION-OF-LIFE €XPOSURE
MICE <MALE + FEMALE >
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wa
——-
aa
ais
ca 7
as 7
a
u
8
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+
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US7e4
DOSE <RAD>
b
Bua
¢
7522
Figure XI.
Best fit to the low-LET radtation data in Figure X.
The numbers in the body of the graph
are the dose rates (rad/day) at which the doses specified in the abscissa
are cumulated during the entire life of the animals.