On the 29th of May two (2) TU-7 monitors were sent to the shot island to make
a general survey{beta-gamma). They also took a converted thyac ani were unable
to detect any alpha contanination at 300 ft. from ground zero. They were unable
to go any closer to ground zero due to the beta-gamma dose rate.
Several people were in close to fround zero on 30 May and their booties were
checked for alpha contamination. These booties showed readings between 600 - 800 ;
cpm on the thyac. .A survey performed on 3 June showed very little alpha contamination
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age a|
(200 cpm in places).
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