the quotient of dEtr/EN by ρ dl, where EN is the energy of each particle (excluding rest energy), N is the number of particles, and dEtr/EN is the fraction of incident particle energy that is transferred to kinetic energy of charged particles by interactions in traversing a distance dl in the material of density ρ
NOTE – For a given monoenergetic radiation, the relationship between kerma (K) and energy fluence (Ψ) may be written
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