Table 0.4
Physiological Factors in Dos imetry
Factor (adult)
Physiological half-life?
Radionuclide
Cesium-1375
Fraction absorbed
from gut
]
Strontium-904
0.3
P lutonium-239, 2404
Americium-2414
whole-body
(days)
110 (90%)¢
2 (10%)
bone
(years)
liver
(years)
--
--
--
3.2
-
0.0001
--
100
40
0.0005
-.
100
40
4
Time for 50% of the element to be gone as a result of excretion.
b
Reference 16.
©
For men 90% of the intake is in the compartment with a 110 day half-life
and 10% in the compartment with a 2 day half-life.
compartment has an average half-life of 87 days.
d Reference 31.
this value.
soggi24
For women the long term
For children the physiological half-life is about 1/3 of
D-23