y9
90
C8)37m
P06
7131
137
“
mY106
S
sro?
products
Fission
Table 1.
half life,
critical organ
2.1
21.8
21.8
week month year years
Per cent abundance at:
Ten
One
One
One
(1)
3.5*
.61*
.51*
17
.O4
36%
.16
1.54
2.26
254
1.46
. 36%
.66
66
none
0.51*
.76
none
none
weak
1,22*
72
Radiation
energy, Mev
Gamma
Beta
(2,3)
1.0 years
}
2.6 vine
8.1 days
30 secs.
17
180
20
50
tt
"
"
"
"
"
3900 days
00
years
hours \ 39
> 500
days
days
35 days
28
64
58
65
51 days
(for man)
Half life
Physical Biological
(2,3)
muscle
thyroid
kidneys
bone
bone
pone
bone
Critical
organ
(4)
(4,5)
0.0015
0.00003
0.1
0.004
0.2
0 .0000008
0.00007
pe /ml
MPC
cal interest
and maximum permissible concentration of fallout radioisotopes of biologi
Per cent abundance of fission products, radiation energy,
rOONM
=A
NAA MEeMOA YN
WN
@