LASL
University of Catifornia
LOS ALAMOSSCIENTIFIC LABORATORY
Los Alamos, New Mexico 87545
To:
W. J. Bair
-2-
DATE:
September 15, 1980
A population of 550 was assumed to be the one that may move back to an
island.
Values for other initial populations may be obtained by ratios
of the results.
The total population at the end of 30 years is given by the
compounding equation:
,
Pag = 550 (140.038)2° = 1684
The number cf births in 30 years are given by:
30
B= oorexssn
(1.038)" dx
0
where x is the time between 0 and 30.
This gives
_ 0.042x550
B = Tnt.038 {1.038~ 30 ~1] =_ 1277
Similarly, the number of deaths in the 30 year period would be:
30
Deaths = 0,0054x550
(1.038)* dx
0
_ 0.0054x550
ia1.038
Deaths =
{1.038-
30.4.
-1] =
164
One other item needed is the reduction in 30 year dose to those
born after the return because of the decrease in radiation levels and
the smaller amount of time in the 30 year period that is spent on the
island.
For this, the total population dose for those born after
returning assuming an initial dose rate of 1 rad/year is given by: