RADIATION DETECTION TERMINOLOGY
clips become attached to the magnet. The same is true of a particle passing by a group of atoms
at a given distance. The slower a particle travels, the more atoms it affects.
Stopping power or linear energy transfer (LET) is the energy lost per unit path length. Equation
6-2 expresses this relationship.
= stopping power
LET = linear energy transfer
DE = energy lost
DX = path length of travel
Specific ionization times the energy per ion pair yields the stopping power (LET), as shown in
Stopping power, or LET, is proportional to the specific ionization.