3.
Little lagoon contamination should result from the deep
water surface shot.
Something on the order of 10% of the total radioe
activity from the remainder of the shots should eventually be deposited
in the lagoon. Using this assumption, a 200 KT shot should give about
thesame results as Bikini BAKER; or 2 UT about five tines 3AicR, etc.
Thefollowing BAKER results are presented for cocparison:
™*
Dinensio
Tine After
Explosion (hours)
Sxposure
_
Rates of Contaminated
Contaninat
Yean Olameter
Are
(miles)
Vaximuc Exposur
Rata (r day)
4
16.6
4.6
75
38
18.4
68
Lo
62
LB.6
7.9
5
86
4.8
8.9
i
100
70.6
9.5
0.6
430
107.0
11.7
0.2
200
166.0
4.3
C.c1
b.
No health hasard should exist after any shot; tne princisal
adverse effect should be limited to an operational nuisance.
Freon tne
above SAXZR results, cone could expect to operate in the lagoon at tne
end of 24 hours for reasonable lengths of tine, with the situation rapidly improving daily.
ec.
-«fter a verind of a faw days, diffusion and currents should
d.
Reduction in the intensity of radiation in the watur snowld
have spresé contamination frou tae shut sites to Bll paris cr “ne .agoon.
take place at @ rate governed by at lesst 1/T¢, with the probability tnat
the rodustion will be more rapid (based 1/T for radioactive decay and
lft for diffusion in the water).
e. Critical ships and beste: CURTIS, LSD, LST, Au, .7F and
emall craft of the boat pools.
f. Residual contamination resulting from intako of lagoon
water and discharge upon complution of its funstion (such as taxes place
through conduasere) should leave little redloactivity except «nore trap
ped in pipo fittings at bends in watar lines. It is expscted that such
"hotespota” should not be hasardous and could be mrkod off for +so.stion; also, flushing occasionally with uncontaminated water snou-s “a.7
’
ruaeve soma of the trapped sodiaont.
Fe
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