The conversion ffrom intake to dose is essentially the same relationship
The differences are in the parameters and these are:
described for
Fy
Fo
the gut traqgfer factor for 239+240py= 1974
and for
Am = 5x1074
the fraction transferred across the gut that goes to
bone = 0.45 for Pu and Am.
the constant te conver’ Ri
W
bone marrow = 4.
X
in bone to the rad dos¢ in
rad for Pu and 4.80 x10-°
* Uptiee )
rad/pCi-d
for Am. This number is converted from Spiers conversion factor of
5000 g of mineral bone and alpha
16.9 rad which is based gn08
uCi-Y energies for
=
+240py and 241Am of 5.4 Mev and
5.6 Mev respectively.
the term for the time integration over the exponential function
representing the retention time of Pu and Am in bone with the
parameters listed in the above text. The values for Q(t) for
30 years for 239+240py = 5.61x10/ (pCi/d}/(pCi/d) Intake and for
24am =
=
5.52 x 10/ (oci-a
Intake.
the quality factor pt MG a radiation = 20 rem
rad
oo 7
onc
hus for Pu,
f> WQF
14-42 x 0.45 x 4.63 x 10°78 x 5.61 x 107 x 20 = 0.0024 rem
(TpCi/d) Intake
and for Am
D=
rem
5 x 10% x0.45 x 4.80 x 1078 x 5.52 x 107 x 20 = 0.012 (pCi/d)
IO00115
D-10
Intake