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EITC RAD TECH chapter 7.02
Radiation
9
Other
Not Applicable
10/05/2016

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Term
Linear Energy transfer (LET)
Definition
the average energy locally deposited in an absorber reuslting from a charged particle per unit distance of travel
Term
Stopping Power
Definition
is measured as the average energy lost by a charged particle per unit of distance travel
Term
Range
Definition
charged particle in an absorber is the average depth of penetration of the charged particle into the absorber before it loses all its kinetic energy and stops
Term
W-Vaule
Definition
Average amount of energy needed to create an ion pair in a given medium. 34 eV
Term
Specific ionization
Definition
the number of ion pairs formed by the particle per unit path lenght
Term
Photoelectric effect
Definition
All or none energy loss, energy less then 1 MeV.
Term
Compton Scattering
Definition
a partial energy loss for the incoming photon. the photon interacts with an orbital electron of some atom and only part of the energy is transferred to the election
Term
Pair Production (most complex)
Definition
When all of energy of the photon is converted to mass 1.022MeV
Term
Neutrons Reactions
Definition
Radiative capture, particle emission, Fisson
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