Le
Table [. - (Continued)
Per cent abundanceat:
1)
Relative
Fission
One
One
One
Ten
products
week
month
year
years
Bal49
9.8
10.8
---
---
13 days
300
Lal40
9.4
12.5
---
ee
40 hours
200
Ceif4
---
2.0
26.5
---
pri44
---
2.0
26.5
---
Pmi47
---
5.7
15.8
—---
MPC
Half Life?)
values?)
285 days
100
17 mins.
+
950 days
2, 000
Mn?4
290 days
1, 000
Fe55
950 days
8, 000
Fe59
45 days
600
Cod?
270 days
5, 000
Co58
71 days
1, 000
C060
1900 days
500
zn55
245 days
1, 000
Non-fission
products
1) Hunter and Ballou. (1951)
2) Strominger, Hollander and Seaborg(1958)
3) MPC values relative to Sr99; based upon values from Handbook
69 for which MPC for Sr90 is 10~Sycfee
*
A short-lived daughter for which hazard is negligible in
comparison to hazard for pa:ent