ground units when supported by tactical atomic weapons and to determine the
psychological reactions of troops particf{pating in the exercise. The DOG
tactical maneuver was the first Marine Corps maneuver of the CONUS tests.
In
addition to these activities, Exercise Desert Rock IV involved psychological
tests at CHARLIE, FOX, and GEORGE to gauge the troops’ reactions to witnessing
a nuclear detonation (9: 1,5).
Figure 9 shows troops advancing into the test area behind a radiological
safety monitor on 2 May 1952, 1 day after the detonation of DOG.
The troops
halted as the monitor took measurements with a Geiger Counter (B).
4.7.3
Dose Summary for Operation TUMBLER-SNAPPER.
A dose limit of 3.0 rem of gamma radiation per 13-week period was
established for participants in Exercise Desert Rock IV, the joint AEC-DOD
organization (coordinator of the series), and most of the Air Force Special
Weapons Center (AFSWC) activities (9: 7).
The following table presents the
available dosimetry information:
Summary of External Doses for Operation TUMBLER-SNAPPER as of 1 May 1986
Gamma Dose (rem)
0-0.5
0.5-1
1-3
3-5
5-10
10+
Army
3,848
467
61
17
6
1
Navy
446
45
61
4
0
0
Air Force
1,112
35
42
17
3
0
Marine Corps
2,033
8
1
0
0
0
Civilian DOD
Participants
368
43
82
10
0
0
92