61
44
YAG 40 (A,B)
Tewa
0.23
1.6
YFNB 29 (G, H)
How Island (F)
1.4
2.6
1.8
13
(1.7)
(2.9)
(1.9)
(13.6)
1 No fallout occurred.
§ Minimum value.
1 Instrumentfailed.
40°
2.5
2.5
0.256
4.3 to 16
3.3 to 9.0
7.0 to 16
14 to 18
8.5 to 16
§.3 to 16
_
_—
_
_
2.9
2.08
-_
|]
ate one
2.0
2.98
* Skiff or instrument lost, or no instrument present.
ft Instrument malfunctioned or may have malfunctioned.
} Activity level insufficient to trigger instrument; no fallout or only light
fallout occurred.
§ Estimated value; clock reading corrected by + an integral number of days.
1 Instrument may have triggered at peak; low arrival rate.
Skiff-VV
Skiff-wW
Skiff-XX
Skiff-YY
t
t
Skiff-TT
Skiff-UU
4a
10.6
t
Skilf-RR
Skiff~S3
=
t
t
t
t
t
3.08
‘
tT
4.2
t
0.48
50
*
3.8 §
*
|
t No determination possible; incremental collector failed.
2.8%)
3.4
3.0
15
1.43
20.2
t
*
0.4
Tt
0.23
0.33
0.22
0.33
—
0.408
0.40
0.35
eeee
* Estimated value; gamma time-~intensity recorder saturated.
7.0
0.25
YFNB 13 (E)
5.7
1.6
Skiff-GG
Skiff-HH
Sidff-KK
Skiff-LL
Skiff-MM
Skiff-PP
‘
9.19
Tt
4.7
t
t
0.05 t
t
tT
t
*
.
0.40
TSD, br
TSD, br
t
ta
Shot Tewa
ty
Shot Zunt
7S
LST 611 (D)
(5.0)
—
Skiff-AA
Skiff-BB
Skiff-CC
Skiff-DD
Skiff-EE
Skiff-F F
*
*
0.73
rt
(7.2)
7.4 to 13
29 to 33
t
1.9 to 9.3
2.4 to 3,3
1.9 to 2.6
16 to 20
15 to 16
13 to 18
19to90$
3.2 to 14§
4.5 to 7.0§
0.6
t
t
:
0.02+
—
t
tt
4.4
7.6
0.038
t
OF
9.6
2.9
0.129
1.49
0.043
8.5
0.116
1
Raft-3 (8)
Raft-2 (R)
Raft-1 (P)
Georgelaland (L)
Charlie Island (M)
William Island (M)
How Island ik;
0.68
YFNB 29 (H)
How Island (F
te He
6.2
|
1.2
1.4
1.1
33
13
6.2
6.1
0.73
1.9
t
TSD, br
22 to 23
13 to 15
20 to 25
2.0 tof
1.5 to 9.0
0.77
YFNB 29 (G)
tb oe eR
2.0
(6.7)
(25)
t
(1.25)
(0.82)
(1.05)
(12.3)
(6.0)
(6.1)
(0.63)
(1.33)
1
t
0.259
0.141
0.098
21.8
0.98
r/or
te
*
TSD, br
ty
te
0.97
0.70
0.98
6.2
20
i
§.9
6.6
6.58
1.2
t
20
13
9.2
15°
1.9
Ip
TSD, br
*
YFNB 13 (E)
ta
Timeof arrival (4) indicutos the arrival tu of fullout ux duturmined
from the time of arrival detector results.
Station
Shot Plathead
Shot Navajo
cd
YAG 39 (C)
YAG 40 (A,B)
YAG 39 (C)
LST 611 (D)
YFNB 23 (E)
YFNB 29 (G, H)
How Island (F)
Zuni
3.4
12
t
0.33
0.32
0.38
YAG 40 (A, B)
YAG 39 (C)
LST 611 (D)
YFNB 13 (E)
YFNB 29 (G, H)
HowIsland (F)
6.0
2.3
3.0
6.20
0.68
0.75
t
How Island (F)
(47.0)
(11.0)
(9.1)
(1.3)
(1.52)
TSD, br
12
10
9.0
1a
1.2
TSD, br
8.0
45
6.6
0.35
0.62
tp
tg
YAG 40 (A,B)
YAG 39 (C}
LST 611 (D)
YFNB 13 (E)
YFNB 29 (G, H)
Station
Navajo
Flathead
Shot
the extrapolated time of cessation.
Time of arrival (tg) indicates the earliest reliable arrival time of fallout as determined from the
incremental collector and gamma time-~intonsity recorder results. Time of peak activity {tp) indicates the time of peak ionization rate (in parentheses) and the times during which the ionization
rate was within 10 percentof the peak rate. Ip refers to the peak ionization rate. Time of cessation (t,) indicates, Lirat, the time by which 95 percent of the fallout had been deposited and, next,
TABLE 3.1 TIMES OF ARRIVAL, PEAK ACTIVITY, AND CESSATION AT MAJOR STATIONS
IN THE ATOLL AREA
see ee ee |