_ CHAPTER 3
TOTAL WORLD-WIDE FALLOUT
3-1
CASTILE TOTAL
The total world-wide fallout from each of the Castle tests
\excent Koon) and from the whole series has been computed on the
basis of results from the monitoring network. Since none of the
stations were located immediately downwind of the test area so
as to experience fallout in the first day or two following a
detonation, it is apparent that by far the largest fraction of
the fallout, the "close-in" fallout, has not been measured.
A composite mac for the commlete series.
showing the total
of all fallout occurring through June 30, 195, and decayed to
July 1, 195, is shown in Figures 3.1 and 3.2.
These mans contain
the cumulative total of all debris devosited on the network from
February 2& througn Jume 20, 1954.
The debris was extrapolated
t July 1 on the basis of the burst assignments indicated in
Apoendix A (exceot for fallout occurring after May 21, which was
reextrapolated to Yankee, see Section 2.5).
Isolines of activity were internolated between stations ard
the average fallout for the world was computed, by numerical
integration, to be 919 d/m/ft°
1
for a total of 22.73 megacuries.
3.2 TOTALS FOR INDIVIDUAL TESTS
To obtain the total fallout due to each of the individual
tests, the follewing crocedure, was used.
t each station, 311
fallout assigned tc the given burst, as indicated on the macs of
Anvendix A, was summed, and the totel fallout values, in d/m/ft
at 100 days after burst, were entered on a mano.
(For these comrutations, fallout occurring after May 21 was not considered, since
there was some doubt as to burst assignment.)
In the event that
data were missing for an occasional day at a given station,
the
-missing values were estimated by interpolation. If data were missing
for 3 number of days, the sum was entered in parentheses and
indicated as a lower limit of activity.
Isolines of activity were
drawn and the total fallout commuted by numerical integration.
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