FLIR identiFINDER R300, User Manual, Page: 278 / 304

D. Glossary FLIR Detection
Isotone
Different
Ú
Nuclides having the same number of
Ú
Neutrons , for example
36
16
S,
38
18
Ar,
39
19
K, and
40
20
Ca with 20 neutrons each but a different
Ú
Atomic Number .
Isotope
Different
Ú
Nuclides having the same number of
Ú
Protons (also known as
Ú
Atomic Number )
belonging to the same chemical
Ú
Element , for example
234
92
U,
235
92
U and
238
92
U.
J
Ú
Joule
Joule (J)
The
Ú
SI derived unit of energy (
Ú
Electron Volt ). It is the energy required to apply a force of
one newton through a distance of one meter (1 N ⋅ m) or the work required to produce one
watt of power for one second (1 W ⋅ s).
1 J = 1 N ⋅ m = 1
kg ⋅ m
s
⋅ m = 1 W ⋅ s
KCl
Ú
Potassium Chloride
LaBr
3
Ú
Lanthanum Bromide
Lanthanum Bromide (LaBr
3
)
Substance to build
Ú
Scintillation Counters .
LED
Light Emitting Diode
LED Stabilization
Method to adjust for the drift of a
Ú
Photo Multiplier Tube by measuring the light of a known
reference
Ú
LED .
Linearization
Measurements relying on
Ú
Scintillation require ways to transfer and amplify light. This is
typically done by using a crystal mounted to a
Ú
Photo Multiplier Tube . Unfortunately, the
physics of this assembly introduces a non-proportionality between the input gamma ray
energies and the processed electronic output signals. For high precision spectroscopy appli-
cations it is therefore inevitable to carefully gauge the assembly to map the non-proportional
deviating energies on to the correct incident values. This process is referred to as Lineariza-
tion.
Live Time (LT)
A detection system is able to record events during the live time, that is, while not being busy
processing events in the
Ú
Dead Time (cf
Ú
Real Time ).
Local Maximum
Ú
Peak
278 identiFINDER
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R300/en/2014.4(13623)/Feb2015