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%