radEAGLET
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.
99
m
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 • 2018-10-24
Software 3.2.0 • Document 3.2.2o
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