TABLE B-1-8. 60Cs (1252.8 keV) BRUSH ATTENUATION MEASUREMENTS
Cleared
Stake No.
Total
Cleared
Uncleared
(pCi/g)
(pCi/g)
(9)
Cleared
100% Brush
(Ratio)
7-N-1
6.3
5.9
0.229
1.089
6-N-1
8.3
8.3
0.260
1.000
5-N-1
8.6
8.0
0.174
1.092
5-S-2
15.1
15.1
0.223
1.000
6-S-2
15.9
15,2
0.228
1.060
6-S-1
7.8
8.2
0.174
0.941
4-N-i
9.2
10.3
0.174
0.893
4-5-3
22.3
24.5
0.174
0.873
7-S-1
6.4
7.1
0.174
0.883
Ratio Mean, x = 0.981
Standard Deviation, 7 = 0.088
.
o/X =8.9%
TABLE B-1-9. CARBON ATTENUATION COMPUTATION
keV
em2/gm*
emai
10/1
60
0.176
0.399
1.147
80
0.161
0.365
1.133
100
0.152
0.345
1.126
200
0.123
0.279
1.100
300
0.107
0.243
1.087
500
0.0872
0.198
1.070
800
0.0709
0.161
1.057
1000
0.0637
0.144
1.051
1500
0.0519
0.118
1.041
*Page 137, Radiological Health Handbook
B-1-8
where t = 0.343 em