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FLIR Detection
D. Glossary
Element
Pure substance consisting of
having the same number of
(also known
as
Ú
) sharing the same chemical properties. The nuclear properties differ if
the number of
Ú
Neutrons
varies in the nuclides (
Ú
Also known as:
Chemical Element
Equivalent Dose
A measure of the radiation
Ú
absorbed by tissue where an attempt has been made to
consider the different relative biological effects of different types of
The equivalent dose is calculated by weighting the
with a factor selected for
the type and energy of the radiation. The weighting factor ranges from 1 for
Ú
Gamma Radi-
ation
and
to higher values for
Ú
, and
Ú
Neutrons
.
eV
Ú
Extensible Markup Language
Ú
False Alarm
An
Ú
not
caused by a radioactive source under the speci ied background conditions.
False Alarm Rate (FAR)
The number of
per duration.
FAR
Ú
Fast Neutron
Ú
Neutron Temperature
FGPu
Ú
Fission
An exothermic nuclear process in which a
Ú
is usually absorbing a
Ú
Neutron
and two
ission fragments and a few ission neutrons emerge.
Also known as:
Nuclear Fission
Fuel-Grade Plutonium (FGPu)
A mixture of
239
Pu,
240
Pu and other
, which contains between 7 % and 19 %
240
Pu.
Further grades are
and
Ú
.
Full Width at Half Maximum (FWHM)
The full width at half maximum height of a
Ú
in a
Ú
(Figure
242
, p.
274
).
identiFINDER
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