dee tk
of an 1? atom trom intestinal tract to thyroid is 2.4 hrs. To allow for
both the above cireumstances, one mush use two exponentials in the expression
for A,(t) given in ref. (3) and sultaply Aj(t) by 4 in equation 2, Again
using equation 3 with these modifications, (with A(r + b) = Ay # A, here
and not 2n,)
E = 0.7 lev
.
K, 0 365
ty « O.15d
K = 0,058
4° 0.216
Ky m 0.0416
ho * 6693
1
A, * 060855
as before
to m 270
For Shot 9:
De 3y(106}0.058L-04216(0415)
2(0.216)(0.302)(e
186)(0.0
+ epee
fe
#0 - 0)
~6693(0.15) -
-0 +0)
= 280 - 2 = rep
For Shot 2:
D = 13.4(260) = 3700
These latter dosages all occur within short tines, of the order of a week
or leas, ard leave no ed idence in the form of lingering activity.
We can
only estimate them on the basis of the relative amounts of the various
isotopes in the fission products present at any time.
Again, an error of
113 may also be present due to lingering Shot 2 ysl activity in the samples,
-12-
as
no® ARCHIVES