organ compartment biological half time for the element,
‘
Cc.
= total body compartment deposition fraction for the element,
oN
D,
= total body compartment biological half time for the element,
aM
:
fo
vig
ar
= fraction of the element from blood to organ of reference.
sid
Equation (5) a
| pplied where significant decay occurred |at the deposition
site, and not during transit or re-transit to the organ of interest.
fat
Valucs for
compartment deposition fractions and compartment half times iwere obtained [rom
4
Ki78.
Values for the remaining quantities were from ICRP59 .
The dose equivalents to a specific organ or the total body ere determined |
oi
The total. target dose equivalent was ‘obtainga by.summation of
Several important modi ficas
ea
For gach person, the source to target dose' equivalent per
:
aids
:
.
unit cumlated activity was weighted by the ratio of a standard man's body mass
5
*4
dosimetric results.
he
* Asi ease
.
tions to the general procedure werg made in order to compute, individual
atte ht
ge
gt
the dosimetric contributigps from all source organs.
opts ieee eee aesoe sas
ters from Ki78.
Appropriate modifications to Eq. (2), (3), and (5) were wade
to reflect this dependence.
Finally, for 905, deposition in bone, 28% of tlie
;
Figure
18 demonstrates the mean dose
'
and sex groupings.
tion.
.
:
opt
te ee
Doge ena, ae
3
‘i
id
;
equivalent
from
137 Cs
.
for
;
various
.
The adolescents and persons above 50 years of age in 1957 maintaine:! the
Persons who died during this period were not ine tuded
37
Sv
a
on
age
The residence interval was from 1957 to 1980 for this popula-
lowest dose equivalent.
ae:
}
4
source to target dose equivalent per unit cumulated activity was assumed from
:
cancellous bone and 72% from cortical
bone.
Saw
body mass (Mi81).
set
moval rate constant for the Marshallese population was highly dependent upon
mal
In the case of 137o6, the Long term biological re-
eer ok a Cy
a
7,
coo ahead3sae"
+s ee Ra
equivalent was determined,
e
relative to the actual mean body mass during the interyal for which the dose
oat
es
“rat
“ta
°#)
ad
OF
4
ut
a
et