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UTIRIK
RONGERIK
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Figure 2. Relative location of the atolls and people.
wind levels which was thought by Peterson to be important. An additional modification included a turbulent wake correction to large granules falling from the
Stratosphere. Parameters for a tropical atmosphere were incorporated into granule fall velocity calculations. An assumption was made that the activity per
granule increased as the cube of granule radius increased. The analytical
approach has been described by Peterson (Pe81).
2.
Comparison of Peterson's Whole-Body Dose Estimates.
The cumulated
whole-body dose was integrated from the onset of fallout to evacuation time.
Peterson calculated the diffusion of fallout using computer codes and upper-air
wind-level patterns. Peterson's results for whole-body dose were compared to es-
timates by Dunning (JCAE57) and Sondhaus (Cr56), and an estimate based on our
analysis of Bikini ash. Sondhaus's work was detailed (S055); the whole-body
dose was based on exposure~rate measurements and a range of assumed times for
the onset and cessation of fallout. Sondhaus's best estimate of whole-body dose
is given in Table 2, as are Peterson's estimate, the Dunning estimate, and the
Bikini ash result (see column labeled 'This Report').
The values for whole-body dose estimated by Dunning and Sondhaus, and
those estimated by the method indicated in Section II.D of this report are in
Table 2
Comparison of Cumulated Whole-Body Dose, Rad®
Location
1955
1957
of People
Sondhaus
Dunning
Ronge lap
175
170
Ailingnae
Utirik
Rongerik
69
14
78
75
15
-
4Multiply by 0.01 to obtain gray.
1981
Peterson
110
1984
This Report
190
24
110
340
81
0.33
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