FLIR identiFINDER R300 - Page 272

D. Glossary FLIR Detection
Decay
The process by which an unstable ÚNuclide (parent) loses energy by emitting ÚIonizing
Radiation and transforming to another nuclide (daughter). Decay of a single nuclide is spon-
taneous, that is, it neither needs external triggering nor is it predictable. The average decay
rate of a large number of nuclides, however, is predictable and usually given as ÚHalf Life.
Also known as: Disintegration, Radioactive Decay
Deutsches Institut für Normung (DIN)
The German national organization for standardization, represents Germany in the ÚISO.
DHS Department of Homeland Security (USA)
Dial-Up Networking (DUN)
A ÚBluetooth communications proile to access the Internet or other dial-up services.
DIN ÚDeutsches Institut für Normung
Dirty Bomb
ÚRadiological Dispersion Device
Disintegration
ÚDecay
DNDO
Domestic Nuclear Detection Ofice of the ÚDHS (USA)
Dose A measure of the ÚIonizing Radiation energy transfer to, for example, tissue (ÚSievert).
Dose Rate
The quotient of ÚDose given in ÚSievert and time.
DT ÚDead Time
DUN ÚDial-Up Networking
Electromagnetic Radiation
Self-propagating waves comprising electric and magnetic ield components. The ÚSpectrum
ranges from low-frequent radio waves (longer waves), microwaves, visible light, ultraviolet
radiation, X-rays up to high-frequent ÚGamma Radiation (shorter waves).
Electron
A subatomic particle with a negative electric charge, counterpart of the ÚPositron. It is emit-
ted as ÚBeta Radiation.
Electron Volt (eV)
The electron volt is a non-ÚSI unit of energy (ÚJoule) employed in radiation physics. It is
equal to the amount of kinetic energy gained by a single unbound electron when it accelerates
through an electrostatic potential difference of one volt.
1 eV ≈ 1.602177 × 10
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272 identiFINDER
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R300/en/2014.4(13623)/Feb2015