H. Nuclide Library
. . . continuation
Thallium
201
Tl 3 d 1 h Medically used material
Used for diagnosing coronary artery dis-
ease and other heart problems.
Thorium
232
Th 14.05 Ga Naturally occurring radioactive material
Found naturally occurring in abundance
within the earth crust, it is not fissile it-
self, but can be used to generate the fissile
element
233
U.
232
Th is used e.g., in gas
lantern mantles and WIG welding rods.
The spectra of
232
Th and
232
U are very
similar.
Uranium
233
U 160 ka Special nuclear material
Used in nuclear power generators. Al-
though the United States demonstrat-
ed/detonated in 1955 a
233
U based bomb
core, the use of
233
U within a weapon
is not as viable of a choice for a weapon
when compared to
235
U.
235
U 704 Ma Special nuclear material
Can be effectively used to manufacture a
nuclear fission weapon, and is a primary
concern because the design complexity
required is far less than that required for a
239
Pu based weapon.
238
U 4.468 Ga Special nuclear material
Used as a base material for generating
239
Pu.
to be continued. . .
Thermo Fisher Scientific Interceptor™/en/5.1(4956)/Feb2010 147
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