(eh
|
high a dsse entiante. I is sem thad 6 sxmmbet lower initial upteke
figure results from these calsulations, but the total dose f6 about the
De
are Sem
Ya
ar
Tae
Te
eer
mn
If ore calculates froa the initial wtake a value for initial oocentration ef aetivity in the aren, & diserepmney appears in conparing
4% with the initial dome rete meanured in afr. This leads to diffcrences
in the estimate ef uptake ant domage for the\thet 2 ease.
Feea equation (6),
u(t) @ By ate)
Pq
Por +, = 345 br, wft,) = ME) gretal & 900 pa/rt”
Which is the total activityof the fiseiéa predusts at tine t,, assucing
that the aren grazed, ¢ « 2) ft7fisy.
Or arrived at in another way, |
|
az(t,) o B,{t,) = 0697 paftr™ at pt.
)
|
a
|
Since st 3.5 te. Fey ” O.0012 of the total fasion prodvet:iactivity,
w(t,) = 0677/0001 = 700 mitt”,
Tm, if the final sorcentration in the Ugreid was as wasurel, this
eoncentyntion of tetal fission profoste on the ground 4s Suplted.
Using the relation given in
4 ref (1),
39
products per
.
af”,
,
* Khair,
yo
for
whence 6 © 8.7 in the relation (ojith*) « 6 (mr/ts)
Thus 0 dose rate in air is iuplied of BY « a m/ur,
or a factor of 4 greater than that ncasurel . If ene accepts the only
*
iy
DOS ARCHIVES