also at HARDTACK I were authorized to receive 15 rem for the total operation
(21: 5,74).
The table below summarizes doses for both the weapons-related
events and the safety experiments:
Summary of External Doses for Operation HARDTACK II as of 1 May 1986
Gamma Dose (rem)
0-0.5
0.5-1
1-3
3-5
5-10
10+
Army
45
64
200
15
5
1
Navy
31
0
1
1
0
0
204
19
27
5
2
0
2
0
0
0
0
0
952
35
20
2
0
0
Air Force
Marine Corps
Civilian DOD
Participants
4.18 SAFETY EXPERIMENTS.
The nuclear weapons testing program included 33 safety experiments,
conducted at the NTS from 1955 to 1958 (22: 8,9,11,12; 17: 9):
e
Four experiments called PROJECT 56 and conducted in November 1955 and
January 1956, after Operation TEAPOT
e
Six experiments called PROJECT 57 and conducted in April, July,
August, and September 1957 before and during Operation PLUMBBOB
e
Four experiments identified as PROJECT 58 and conducted in December
e
Nineteen experiments conducted from July to October 1958 during
Operations HARDTACK I and II.
1957 and February and March 1958, after Operation PLUMBBOB
Eleven of the tests were surface detonations, while nine occurred in
shafts, six in tunnels, and one on a barge.
Of the remaining safety
experiments, five were tower detonations and one was a balloon test.
Ten of
the experiments had no measurable yield while one, COULOMB C, had 0.5 kiloton,
which was the highest yield of any safety experiment.
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