Table 230. Cumulative rems to organs from 239, 240.5. via inhalation pathway, lung.
LIWVING S4TTSPN
1. MODIFIER
NMOOTF IED
1}. MODIFIED
YHMOD IF TED
Ill. MODIFIED
UNMODIFIED
Iv. MODIFIED
UNMODIFIED
V. MODIFIED
UNMODIFIED
VI. MODIFIED
UNMODIFIED
PLI-G
IN SOIL
EMPOSED
S YRS
18 VFS
38 YRS
S58 YRS
7@ YRS
f.05
4.8086
0.8661
8.0004
@. 0806
@.808089
8.12
8.6841
8.8885
8.BH082
6.8016
8.0822
2.00
8.8817
8.8844
8.6152
6.8268
8.6368
4.7)
6.808408
8.8103
8.8357
6.0611
6.0846
?, 38
8.8863
8.8161
@.@555
6.8949
@.1314
17.88
6.8146
8.8374
6.12392
8.2218
6.3660
15.468
8.01293
8.6358
6.1148
6.1954
8.2788
cr .@8
8.8602
4.1694
8.5952
1.6814
1.3868
7.38
8.9863
8.0161
9.8555
8.8949
4.1314
17.62
8.8151
4.0387
8.1338
8.2288
6.3168
3.58
8.8882
0.8289
H.8°22
@.1235
@.1718
14.70
68.8126
@.a323
8.1117
8.1911
@.2646
disappears only by radioactive decay,
t
i,e., that no other processes are in
Dose (rem) = «ef
operation which reduce the nuclide avail-
Oo
ability in the food chain, Therefore
-Art
.
C= Coe
C an dt
t
, where Cy is the concentra
- kef
tion observed at the time of the survey
0
If
man
C
| man
~o
r
and r. is the radioactive decay constant,
The concentration in man at any time t
x(e
after initial consumption of the food is:
x (e
man
“At
pCi/g to rem and equals 5.1 X 107°
-A_)
-e
(5)
where K is a conversion constant from
_ Tfnan So
Cman ~ MO
-rA_t
-r
r -e man’ ) at,
“r
“A nan t
disintegrations: g- rem
and E is the dispCi-MeV: day
integration energy of the nuclide in MeV,
), pCi/g.
(4)
including. a factor for relative biological
effectiveness (RBE).
The final dose is
The dose at any time t after initial con-
then determined from the integration of
sumption is
the equation,
I-42
i. e.,
eer?
- 8d
git uO