gamma dose attributable to fission-product decay is known, the shape of the decay curve is sufficient to provide reasonably accurate information on dose rate versus time for weapons of the
measured yield and certainly can be extended safely to weapon yields of 20 tons.
3.2 TOTAL INITIAL-GAMMA DOSE
Measurements were taken from 55 to 1,600 yards along the high-neutron axis (0 degrees) and
10"
|
t
@ REAOING ON O° AXIS
.
@ READING ON 85° AXIS
+--+ THEORETICAL(AFSWC- TR-58- 13)
o,
2
DOSE x SLANT DISTANCE , rxyds
2
La
°
200
400
600
800
SLANT DISTANCE , YAROS
1000
(200
1400
Figure 3.5 Summaryof initial gamma, RD’ versus D.
from 300 to 1,600 yards along the low-neutron axis (85 degrees) at station locations as indicated .
in Figure 2.3 and Table 2.1.
Uncorrected and corrected (where applicable) data for initial-gamma dose as a function of
distance are presented in Tables 3.2 and 3.3 for all total-gamma-measuring techniques utilized.
In most cases there was more than one of each of the detectors per station. When this occurred,
the average reading for each type of detector appears in Tables 3.2 and 3.3.
33