40
where D, is the dose rate due to the present standing stock S..
turn-over time of the lagoon (t) is short compared to T, then:
.
4930 = 70.c
.
-e
Se.
If the
30
-0.693(T )
Assuming, as described in chapter 5, that D,. = 0.26 mrem/yr, t = 0.5
years, S, = 1.5 Ci and assuming further that all of the 12.6 Ci in the
dome is available for leaching, then the extra 30-year dose as a
function of effective half-life in the dome is:
|
|
4D
2»
1.1
ad
-0.693(T )
mrem
-e.
les
CS}
ca
cs}
aD
The data in section 5.7 are calculated from this expression.