pi
11
Answer
Yes thenuclides ean be broken down by name.
As previously stated
there are approximately 200 radionuclides created in the fisstoning process
“but it is possible to estimate the radiation doses to the population pri
marily by considering 5 significant radionuclides that may be deposited in.ternally.
The latest values for the dose commitments for populations
in the North Temperate Zone from nuclear tests carried out before 1968 are
given in the following Table taken from a recent report of the United Nations
Tare 1. Dost coMMITMENIS FROM NUCLEAR TESTS CARRIED OUT BEFORE 1968
Dose conturttments (rad)
ee
ae
;
Source of sadiation
Gonads. 0. co... ee. _. External
.
Internal
-
Internal
ww... External
Internal
Whole
word
36
8
ITC's
- Cb
21.
13.
4
413
lig
33
4
36
130
21
16
<1
8
8
28
4
16
21
240
. 66
220
36
36
8
8
23
23
ITC's
3G
Short-lived
13TCs
Sr
NICs
14Cb
"
89Sr
Torale
Bone marrow ..
. South
femperate
sone _
Short lived
Total¢
Cells Jining bone surfaces... External
North
temprrate
sate —
Short-lived
— NTCs
*. 99S¢
137C's
44Cb
89Sr
tol
WW
170
51
21
13
<i
Totale
8
4
13
<1
23
23
218...
13
80
"23
23°
1308
2i*
16
<1
648
2is
13
<1
140
-
The dase commitments dae te intemeudly depesited °OSR and OCs piven for the north temperate
rene are comsidered fu sepresent apper Barits of the corte. pouding: dose comraitments to the world
popneel aris HD,
hAS ti the 1b ined [8G reports, only the bee fa ginalcted up te year 2000 are prec for HC;
at that tuue, the doses trem the other nuclifes will love cosenteally Deen eglisered dn full Une tend dase
conunitnont to the geuads aud bone marrow due to the PC drag: tests up to the ead of 1967 is abeut
180 millirads and thet to cell ning bone surface is about 230 nullirads.
¢ Totals have been rounded off to two significant fignies.
i
Scientific Committee on the Effects of Atomic Radiation.