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The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from U. S. Project Trinity Report by Carl Maag and Steve Rohrer: within a circular area extending about 1,100 meters from ground zero
(except in areas of fallout). One week after the shot, the gamma
intensity at ground zero was about 45 R/h. After 30 days, intensities
at ground zero had decreased to 15 R/h, and intensities of 0.1 R/h or
more were not encountered beyond about 365 meters from ground zero.
Gamma intensities of 3 to 10 R/h were found at ground zero three
months after the detonation (1; 19).
3.3 OFFSITE MONITORING GROUP
Four two-man teams and one five-man team supervised by the chief
offsite monitor constituted the Offsite Monitoring Group. Before the
detonation, the four two-man teams established monitoring posts in
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