~10-
Survey meter readings
Table 2 gives survey meter readings at nine islands, of
which Edna, adjacent to the site of the Nectar detonation
(Mike crater), was highest, with 600 mr/hr on June 7, 1954.
Figure 3 shows the series of
readings at Belle with meter one
inch from the ground, the shield
both open and closed.
BELLE
—
SURVEY METER
READINGS
Slopes of
the two regression lines, -1.14
and -1.06
(Table 1) do not differ
significantly. The slope is
approximately that of mixed
fission product decay, assuming
there was a slight leveling
influence due to detonations prior
©
to 1954.
AVS AFTER
10
MAY 14, 1954
Fig. 3
Table 2.
Survey meter readings in milliroentgens per hour
at one inch from the ground on various islanda of Eniwetok
Atoll in 1954-65,
Values above 20, with Junc, others with
Geiger counter.
Shield open except at Belle, first colwm,
for which, shield closed.
Date
Alice Belle
5/15/54
16
18
19
22
26
6/1/54
2
3
4
7
10
11
1a
22
7/1/54
14
18
20
8/6/s4
1?
0/7/64
7/64
Daisy Edna Janet Olive Vera Henry Leroy
378
200
130
800
85 270
220
30 680
30 80
29 90
27 70
22 70
20 60
19 50
18 35
12 &
10
40
6
18
5
11
7
60
600
400
14
13
ll
180
2
2
20
«10
le
+18 .
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