3.3
COMPARISON WITH TOTAL BETA YIRLD
It is possible to compare the total fallout observed during
the Castle series with the amount of beta activity produced.
Assuming the relationships between fission yield and total beta
activity given in The Effects of Atomic Weapons (4, p. 251) is
valid, the beta activity in the fission products from @ nominal
bomb t20 kt) 18 approximately 266 megacuries after gne day. Using
the fission yields given in Table 2.1, and the t™*°° law, the total
beta activity produced in the Castle is shown in Table 3.1.
TABLE 3.1
Total Beta Activity Products in Castle Series
Burst
1. Bravo
2. Romeo
3. Koon
l. Union
5. Yankee
.
6 Nectar
Total
A comparison of the observed fallout from the first two events
and from the series as a whole with the total produced is shown in
table 3.2, The remaining events are not shown individually since
the intervals between bursts were too short to adequately differentiate
the debris for this purpose.
TABLE 3.2
Comparison of Observed Fallout with Total Produced
Burst
100 days
Total Fallout
after burst
(megacuries)
July 1, 1954
(megacuries)
Percent
of total
produced
Bravo
p
Romeo
Castle Series
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