oe OI
d
F
D = 2,32 x 10°t72+
(1.1)
Average dose rate, r/hbr.
Time after detonation, minutes.
Consideration of Reference 2 led to the following gensralizations
which were used as guides in the initial planning of this project:
The dose rate in the cloud is relatively independant of yield.
(2)
(1)
Within a factor of two, the average dose rate in a cloud is given by
Equation ll.
The first manned penetrations at early times after detonation
(17 to 41 minutes) were nade during Operation TEAPOT, These penetrations
were made through clouds from weapons ranging in yield.
The average dose rate in the cloud as masured during these penetrations
is shown grapbically in Figure 3.2.
The gamma radiation dose rate within the atomic cloud resulting from
klloton-range weapons has received theoretical consideration in Refer-
ences 3, 4, 5, 6, and 7.
The outstanding features of many of these cal-
culations are the very-high gamma dose rates predicted for very-early
times due to small cloud size and high fission=product concentration.
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