Table 12
BRAVO Fallout Beta Activity Related to BRAVO Fallour Exposure Rate
Day 26 Post-Detonation
Nuclide
89sr
90s>
. 90y
Ily
93z7r
ISNb
103Ry
Z of Bikini Ash
Beta Activity
1.3
.013
.013
8.0
6.2
2.7
5.0
106p,
0.70
Te
0.35
IooRh
129mp6
13276
131;
132;
14054
1407,
14lce
l44ce
144p,
143p,
147nNg
45ca
237y
239puy (a)
355
0.70
(uR h7l) Nuclide@
(mCi km“) Bikini Ash
3.3x1078
0.0x109
3.5x10711
§.0x107&
8.6x1074
3.9x1074
4.5x1074
0.0x109
2.7x10~
3.6x107
0.95
1.0
4.5
1.0
5.0
6.0
8.4
1.7
1.7
16.
5.3x1076
3.8x1075
3.3x107¢
4.2x1074
1.4x1074
2.3x1073
1.0x1074
4.7x1076
9.0x1076
—-2.7x10711
0.20
1.8x10712
9.0
20.
0.0004
0.050
(mCi km72) Nuclideb
(uR h-+) Bikini Ash
2.3x1074
4.6xi074
5.4x10710
0.0x100
2.2x106
~
2.2x1072
-2.2x1072
1.4x101
1.1x10!
4.7x109
8 .6x109
1.2x109
1.2x100
6.0x10—
1.6x109
1.7x109
7.8x109
1.7x100
8.6x109
1.0x10!
1.4x102
2.9x100
2.9x100
2.8x10!
1.6x10!
3.5x107!
3.5x101
6.9x1074
8.6x1072
8Mulciply by 1.94 x 10715 to obtain Cc kg ts71Bq7? m.
Divide by 1.94 x 10715 to obtain Bq n cui kg s.
ii. Areal Activity at Fallout Cessation. Using the above estimate of the mean unweathered exposure rate on day 26, we estimated the mean
unweathered activity per unit area to be 1.0 x 10% Bq m2 (2.4 x 102 mCi km72).
We made this estimate by multiplying 47 mR ae by 1000 and then multiplying this
product by the activity per unit area per unit Bikini ash exposure rate (see
Table 12, column 4).
Cd
- 31
por me
wea Lb aw at
-