ORTEC radEAGLE - Page 123

radEAGLE User Manual Nuclide Library
… continuation
Nuclide Usage,
Severity,
Half Life
Description
226
Ra
Ra226
NORM
Innocent
1600 a
Radium is a specific stage in the decay of uranium which
naturally occurs in the earth’s shell. When it decays
down, it becomes
226
Ra. Radium is one of the most fre-
quently encountered radiation signatures and is consid-
ered naturally occurring radiation. Tiles and rocks are
very likely to receive radium identification results. Also,
sources denoted as uranium ore are typically identified
as
226
Ra sources.
99m
Tc
Tc99m
MED
Innocent
6 h
Widely used and frequently applied medical radiation
substance. Used for imaging of the heart, liver and kid-
neys.
201
Tl
Tl201
MED
Innocent
3 d
Used for diagnosing arterial diseases and problems as-
sociated with blood flow.
232
Th
Th232
NORM
Innocent
14.05 Ga
A naturally occurring material found in rocks. It is used
in lantern mantles and welding rods.
232
U
U232
SNM
Threat
69 a
233
U
U233
SNM
Threat
160 ka
This is a fissile isotope of Uranium that was formerly
used in nuclear weapons. Today this uranium isotope is
used primarily in nuclear reactors. It is still considered
a threat material.
235
U
U235
SNM
Threat
704 Ma
235
U is a very important isotope of uranium used in
commercial nuclear power reactors. Uranium used in
reactors is typically 3-5% enriched (the
235
U content).
Low Enriched Uranium has <20%
235
U content. Highly
Enriched Uranium (>20% and sometimes as high as
90% or more) can be used in nuclear weapons and is
an important threat material to detect.
to be continued…
© innoRIID GmbH • 2019-04-11 Software 3.2.12 • Document 3.3.0o 123/147