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establish a safe time for personnel to rezover instruments and test data
near the burst.
At about six (6) hours after the detonation a second heli-
copter transported a rad-safe team around the shot atoll to accomplish a
more detailed radiation check and to assess the damage to airstrips and
helicopter pads,
Following test events, all aircraft returning to Eniwetok which could
possibly be contaninated were monitored and those requiring decontamination
were isolated,
The aircrews were immediately sent to the personnel decon-
tamination center, checked thoroughly and decontaminated when necessary.
Contaminated aircraft were allowed to decontaminate themselves in isolation
by radioactive decay when time permitted.
This technique insured a mininun —
of radiation exposure to the decontartination personnel since the contamina»
tion intensities approximately halved themselves each seven (7) hours.
*
After decay the remainder of the contamination was removed from the aircraft
through normal washing with chemicals, water and high pressure hoses,
Many activities under Task Group 7.) participated in the accomplishnent
of a successful and a safe nuclear test.
Through the planning and adminis-~
tering of a conservative yet realistic radiological safety program,
Operation HARDTACK was completed with no radiation injuries occuring within
Task Group 7.
4
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