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(MORAWK)
Project 2.65 ~ Analysis of Fallout and Bese Surce - M. Morgenthau
QRTECTIVE
Torer the cloge-in residual ocntemination field resulting from the
Mobavk) shot,
For this event the project hed only limited participation, consisting of
en aerial survey on M, Mtl, and M2 days,
The survey ves made of the portion
of Enivetok Atoll contaminsted to a significant amount by this event.
included the islends between Engebi and Aopon.
This
Pertioular attention we 7214
te the residual conteminetion on Rojoru, Fberiru, and Aowon.
The seesurements
were taken by means of a probe on # long catle suspended below a hovering
helicopter.
The position of the probe was determined ty reference to charts
and serial photographs.
MSULIS
Aerial ourvey readings taken on three successive days were corrected for
meter calibration and corrected to H+] hour values as shown in Table 2.65-1 ty
using the decay exponent of -1.10,
This decay exponent was determined froz a
plot of field dose rete reedings ve time for three of the ialands surveyed as
ghown in Pig. 2.6541.
These particular lalands vere obosen for thie plot
because of their low background prior te the abot.
H+] hour extrapolated
readings for Eberiru Island ere shown in Fig. 2.65~2.
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