**Table 2, Radionucl* "2s to be expected in the Bnivetck Environment _
Isotope
pbhys
1/2
(days)
ff,
Typ
—
.
Emission
Critical Organ
Energy (MeV:
DEF (RBE)
3H
5x10
12
Bo
W.B.
0.0063
Uk,
2x10°
12
B”
Sol. Fat
0.054
Submersion W.B.
0.05%
Sol. spleen
0.0065
10
Fe
1.1x10°
600
e(x-ray)
3.2x10°
60,,
1.9x107
63y5
9.5
2.9x10"
Insol. Lung
"
Insol. GI
"
Sol. W.B.
1.5
Sol. GI
0.44
Insol. Lung
0.72
Insol. GI
0.44
Sol. Bone
0.11
Insol. Lung
0.021
Insol. GI
0.021 —
Sol. Bone
ll
Insol, Lung
1.1
Insol. GI
1.1
W.B.
1.2
B™, B*
WB.
0.39
Bsr
Sol. W.B.
0.34
Sol. Bone
0.69
By
800
6
.
9c,
ro!
6.4x10°
102en
1.06x10°
10.4
102p),
206
10.4
1259,
876
B
e(x-ray)
38
100
.
Sol. GI
100
Sol. Lung
100
Insol. Lung
,
137o5
WTp,
1.110"
920
70
138
”
570
~
YB
"
B
Sol. W.B.
0.59
Sol. Bone
0.35
Insol. Lung
0.06
‘Insol. Lung
Insol. GI
Sol., Insol. GI
ex
ADE et tae
0.26
Insol. GI
‘~..... SO
Half-life in man following uptake in tissue
Effective energy for deposition in human tissue.
KKK
0.23
Ahhrevi atinn«
O.41
0.34.
0.069
a1
(includes active decay products)
aT (Gastrointentinal tract). W.B. (Whole hodv).