6.2.10
Growth of Shot 1 Fallout Pattern with Time
It must be realized that the reconstructed fallout pattern de~
scribed in Fig. 6.6 indicates for convenience the leveis of activity t
thet would exist should all of +he fallout particulate be down at
O+ 1 hr.
Of course, this is not the case, for the primary pattern out
to arproximately 260 nautical miles was not static until some 20 hr
after shot time. Fizures 6.8 through 6.12 show the growth of the pattern
with time. The gamma field levels are those that would exist at these
times over a land area. In constructjon o° these patterns consideration .
of both decay and time of arrival as indicated by Fig. 6.13 were taken
into account.
6.3
EXTSNDSD FALLOUT PATTERN FOR SHOT 2
were in the fallout arca as indicated by Table 4,9.
data were reduced und analyzed by Froject 2.6a.
The total collector
TABLE 6.9 - Shot 2, Gamma Infinite Field Levels Converted to r/hbr
av 1 hr as Determined by Various Techniques
i
|
Stat
Beering from ° Distance from Cimmed Faper
Ground Zero
.
(degrees true)!
Ground Zero
Total
Collector
(n miles)
Collector
Analysis
1
Analysis\a
(r/ir)
(r/hr)
120
420
Ay
352
13
P,
271
34.
Q,
295
34
33
Ry
308
36
435
480
Ty
337
43
220
90
A,
347
52
147
Ds
054
53
Ps
095
53
Gs
115
53
0,
(a)
247
34
As evaluated by Project 2.6a.
2
0.24
2.0
1.0
|
;
0
0
|
0.1
110
0
90
”
|
-
-
hey.
Bikini Atoll was not heavily contaminated after Snot 2 was deton
Nated due to the primary fallout falling to the nortn of tne saot point.
Eleven of the samples from the free-floating see stations recovered
after Shot 2 were evaluated and it was founc that the main swath of fallout crossed over the station array. Of the 11 stations recovered seven