Then
quemamest
a = $42 (93) (0.0229) - —
= 105 at 27 days (Shot 9)
And for Shot 2:
a@s1e5 (13.4) = Dye at 27 days.
The total dose to the Antestinal wall froa the beta radiation of the
fission products as a whole my also be estimated.
As a rough approximtion
the intestine may be regarded as a cylinder of one centineter radius ari
10 ustor length, filled with a honogensous mixture of fission products
ard water.
Using the estimsted value of EZ, for fission produste during
various tine intervals after burst, the value af 4 may be estimated for
water during these times as follows:
a
P
m
of
where 4 = Linear absorption eoeffinient, am>
P w= density, gufent (for water P = 1)
d§ ~ halfwintensity thickness of -uaterial, gnfon'’.
The quantity 4, is umually about one eighth of the range of 2 beta spectrum.
Ag a first approximation, then, one may ealovlate a/P from the Feather range =
erergy relation:
0.5438,~06160
wen = (00699)
0.543000160
(gnfen*)
eo eee ere c cence sone eee ss of(il)
~L&-
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