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Task Group 7.4's mission, as already stated, was to perform nuclear
cloud sampling, aircraft effects measurement and technical photograpky
ag primary functions, and inter-island and intra-atoll airlift, weather
reconnaissance and reporting, air rescue and communications as secondary
functions.
A.
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NUCLEAR CLOUD SAMPLING
The sampling program consisted of collecting particulate and gas-
eoug matter from the atomic cloud.
Particulate samples were collected
on a special type filter paper in specially designed wing tip tank filters.
Gaseous samples were pumped by special devices into begs or bot-
tles in the aircraft,
:
The Los Alamos Scientific Laboratory and the University of California Radiation Laboratory indicated the quantity of samples desired and
allowed Task Group 7.4 to establish the aircraft requiremsnts necessary
to take this quantity.
Two B-36's, fifteen F-84G's and one WB-29 were
designated as samplers.
Nuclear cloud sampling was the task of locatingand obtaining, for
radiochemical analysis, the best possible representative samples of
radioactive particles available throughout the nuclear cloud which ensued
“we
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