262
HOW ISLAND SURVEYS, STATION F
Il.
RESOLUTION OF IONIZATION RATES BY EVENT
_
ed
_
_
=_
_
_
_
9.9
27.8
51.9
458
103
706
726
752
944
946
964
989
1,035
11.2
30.3
62.5
100.6
124.2
149.0
197.6
246.6
370.4
388.3
412.4
1,018
1,063
1,066
1,085
1,112
1,304
1,306
1,324
1,349
1,996
—_—
_
_
_
_
_
—_
_
_
_
_
_
VA
10.5
28.9
56.1
248
250
268
293
339
NA
_
_
_
_
_
_
_
_
—_—
_
_
—_
8.5
10.6
28.6
53.2
98.8
_
_
_
_
TE
101
84.1
§7.9
41.9
20.9
20.8
18.2
8.82
8.60
8.60
8.46
8.32
7.55
7.55
7.48
4.48
1.34
1,714
661
292
142
zu*
_
_
_
_
_
_—
—_
_
71.4
43.5
7.24
4.18
0.463
0.456
0.410
0.364
0.283
_
_
_
_
Nat
_
_
_—
_
_—
_
_
_
_
_
_
_
220
185
79.6
24.9
12.1
_—
_
—_
_
Diff. 3
By
TE
_
_
_
_
—_
_—
_
_
—_
_—
_
—_
199.2
161.7
64.3
34.5
15.3
_
_
_
_—
Decay §
By Relative
101
84.1
57.7
41.94 22.5
20.9
20.8415.6
18.2
8.25 229.3
80.0
52.1
15.7
12.5
228 4 12.5
193 £13.2
87.5 £14.7
32.7 49.88
19.7 215.4
1,714 49.18
561
292
142
pet
Mean Observed
and a
_
_
—_
_
_
—_
_—
—_—
_
_
_
_
-9.45
~12.6
~19.2
+ 38.5
+ 26.4
_
_
_
—
pet
Residual
Error
* Computed from ZU + 1018 hr and later by 4-1 gammarelative lonization decay of How F-64 ZU, Tray 856.
t Computed from difference, observed ZU, to NA + 56.1 hours; thereafter by 4-« gammarelative lonization decay
of YAG 40-A-1, Tray P-3753.
t Computed from difference, observed (ZU + NA).
§ Computed from best fit of 4-1 gammarelative ionization decay of YFNB 13-E-57, Tray 1973.
FL
zu
The fonization rates for Shota Zuni, Navajo, and Tewa are shown; Shots Flathead and Dakota produced negligible amounts
:
of fallout.
Hours Since
lonization Rate, mr/hr
TABLE B.28