Table 12
BRAVO Fallout Beta Activity Related to BRAVO Fallout Exposure Rate
Day 26 Post-Detonation
Nuc lide
% of Bikini Ash
(uR h7!) Nuclide4
Beta Activity
89gr
1.3
9ly
8.0
103Ru
106Ry
106Ry,
5.0
0.70
0.70
4.5x1074
0.0x109
2.7x1075
132;
140g,
1.0
5.0
4.2x1074
1.4x1074
90sr
90y
.013
.013
9577
9SNb
14074
lal,
l44cq
144p,
143py
147g
45¢a
0.35
0.95
1.0
4.5
6.0
8.4
1.7
1.7
#16.
a
ot
239py (a
3.3x1078
2.2x109
5.0x1076
1.4x101
2.2x1072
2.2x1072
8.6x1074
3.9x1074
1.1x10!
&.7x109
3.6x1076
5.3x107%
3.8x107
3.3x1074
6.0x107!
1 .6x10°
1.7x10
7..8x109
8 .6x109
1.2109
1.2x109
1.7x109
8 .6x109
2.3x1073
1.0x1074
4.7x1076
9.0x1076
27at |
:
ofae
oD
0.20"
237y
(uR h-4+)Bikini Ash
0.0x109
3.5x10711
6.2
2.7
1297,
oeete
Te
131y
(mCi km72) Nuclide>
(mCi km*) Bikini Ash
1.0x10!
1.4x101
2.9x109
2.9x109
2.8x10!
Jer 2.
1.6x10!
pHsi0-12 were
ee B61OTH Segid>
$0006 ec + FS seger0710. 2 ee
35g
Saiz i
a
~~
ii.
mig at ea
et
ak
3
a
-
e
aa
os
3.5x1071
3.5x10
6.9x1074
8 .6x10~2
eS
Aweal Activity at Falitout Cessation: Being ‘Be
th above esti-
mate of the mean unweathered exposure rate on day, 24,~we-estimated the mean
meee tee
yt
ae Me _ =
itarea to be 1.0 x 104 Bq we. (2.4 x 102 mCi km~2).
unweathered activity-per
We made this estimate by multiplying 47 mR h™! by $000 and then multiplying this
product by the activity per un it area per unit Bikini ash ex posure rate (see
Table 12, column 4).
ge
- 31 -
.-
te ep.