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RERTEF
OTE RET reeT
Table 10.8-—HELEN (BOGAIRIKK)*t
1952
3
§
1
8
9
Nov.
Nov.
Nov.
Nov.
Nov.
0805
0807
9742
O48
0742
11 Nov.
12 Nov.
15 Nov.
0800
1616
0801
17 Nov.
1623
0803
18 Nov.
O757
Meee
ee
16Nov.
PORE
Time
19 Nov.
21 Nov.
1953
3 Jan.
Ground reading,
mr/hr
mr/br
13,000
8,000
2,200
1,800
1,700
2,400
1230
0844
0939
Air reading,
_
800
1,600
1,000
Island
Island
Island
Island
Island
center
center
center
center
center
Island center
Island center
Doubtful value
King day
700
600
Island center
Island center
600
Island center
340
1,200
Remarks
eX
Date
280
*/ nautical mile from ground zero.
fAssuming that radiation decay follows a T~'-? law, extrapolation in-
dicates that radiation readings greater than 1700 r/hr would have existed
at H+ 1 hr. Limited recovery (10 min) could commence at H + 36 hr.
45