TABLE B.23
OBSERVED DOGHOUSE DECAY RATES OF FALLOUT AND CLOUD SAMPLES
Fallout samples listed are total undisturbed OCC trays, counted ith aluminum covers in place on the floor of the
The standard cloud sampies are essentially point sources of
filter paper in lusteroid tubes, placed in a clean OCC tray, and similarly covered and counted. The extended
sources, or fallout samples, have been corrected to a point source equivalent by increasing the observed counting
rate by 7 percent (Reference 66). Their fission contents appear under Total Fissions in Table B.12.
Counting Time
Observed Activity
Counting Time
Observed Activity
counter, ~36 inches from a 1 inch Nal(T1) crystal.
H+hr
counts/min
counts/sec
104 fissions
H+hbr
YAG 39-C-23 ZU
192.2
14, 930
383.1
4,647
598. 3
2,073
71.5
1,416
1,538
509
counts/min
counts/sec
asses
10° fissions
How F-B-12 ZU
7.93x 107°
2.46 x 107!
1.131077
7.51 x 107%
2.71 x 1078
76.9
98.3
190. 8
382.1
771.4
1,539
2,945, 620
2, 242, 750
930, 350
266, 730
18,557
35,970
9.97 x
7.59.x
3.15 x
9.03 x
10977
107°
107°
107*
2. 66 x 10-4
1.22 x 10-*
YFNB 13-E-55 ZU
97.6
3,518,106
191
1,415, 754
383
411, 888
771
119, 308
1,538
48,315
1,970
39,819
2,403
33, 252
How F-63 ZU
6.69 x 107?
2.69 x 107?
76.7
95. 6
191.0
382. 2
171.4
1,539
7.84x 107%
2.27 107%
9.19 107%
7.58 x Lo-*
6.33 x 107*
YFNB 13-E-58 ZU
70.3
2,544, 603
95.7
1,909, 529
191
769,170
383
223,190
771
63,691
1,539
26, 463
52.1
70.8
94. 2
123. 3
170.2
189. 6
237. 6
285.9
406. 4
525. 6
770. 6
1,538
1077
107"
10-*
107*
9. 34 x 107*
How F-B-5 ZU
76.8
3,577,190
95. 6
190. 9
2,865, 850
1, 232, 290
383. 1
322, 064
771
96, 783
1,539
44,244
1,971
36, 563
2,422
31,178
9.68 x 107°
7.76 x 107"
3.34107"
8.72 x 10~*
2.62 x 107%
1.20 x 107%
19, 453
5,138
143.6
1, 620
1,534.7
495
220.0
382. 8
7142.6
1,534.9
5.67 x 10°?
1.50 x 1077
4.72 x 197*
1.44x 107%
70.4
42, 589
16,251
384. 3
4,150
7142.8
1,534
1,220
.
390
2.44 x 10%
1.03 x 1078
144, 652
113, 582
' 87, 319
65,194
44,193
38,414
27,537
20,138
11,154
7,420
3, 943
1, 200
2. 450 x 1078
1. 923 x 107*
1.478 x 1078
4.104 107¢
7. 489 x 107?
6.504 x 107°
4. 664x107?
3.414 x 1077
1.890 x 107°
1. 260 x 107°
6.676 x 107%
2.032 x 104
2, 360, 643
944, 495
284, 202
85,797
3.39 x 1077
1.36 x 107?
4.09 x 107*
1.23 x 107%
YFNB 29-H-79 FL
94.7
167.8
384.1
1,535. 5
YAG 39-C-22 FL
167.6
7.97 x 1977
3.08 x 1077
8.67 x 1078
YFNB 13-E-58 FL
9.89 x 107°
8. 44x 1079
YAG 40-B-17 FL
166. 3
383.1
1.01 x 107*
ZU Standard Cloud
8.99 x 107"
6. 74x
2.72 «
7.88 x
2.25 x
3,935,480
3, 015, 700
1,194, 420
336, 322
94,770
40,136
1.45 x 107*
5.53 x 107"
1.41 x 107°
4.15 x 104
1.33 x 10*
251
312,141
158, 986
40, 390
3, 722
1.03 x 107¢
5.24 107"
1.33 x 107°
1.23 x 107%