D. Glossary FLIR Detection
Isotone
Different ÚNuclides having the same number of ÚNeutrons, for example
36
16
S,
38
18
Ar,
39
19
K, and
40
20
Ca with 20 neutrons each but a different ÚAtomic Number.
Isotope
Different ÚNuclides having the same number of ÚProtons (also known as ÚAtomic Number)
belonging to the same chemical ÚElement, for example
234
92
U,
235
92
U and
238
92
U.
J ÚJoule
Joule (J)
The ÚSI derived unit of energy (ÚElectron 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 ÚPotassium Chloride
LaBr
3
ÚLanthanum Bromide
Lanthanum Bromide (LaBr
3
)
Substance to build ÚScintillation Counters.
LED Light Emitting Diode
LED Stabilization
Method to adjust for the drift of a ÚPhoto Multiplier Tube by measuring the light of a known
reference ÚLED.
Linearization
Measurements relying on ÚScintillation require ways to transfer and amplify light. This is
typically done by using a crystal mounted to a ÚPhoto 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 ÚDead Time (cf ÚReal Time).
Local Maximum
ÚPeak
278 identiFINDER
®
R300/en/2014.4(13623)/Feb2015
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