Dose 2016

d ε

5.2

mean energy imparted

D

=

d

m

The term “energy imparted” refers to a balance of radiation energy entering and leaving a volume of mass:

Radiation energy entering a volume (electrons, photons)

R

in

In the volume there are: - many interactions

Σ Q

V

- Σ Q is the change of rest energies of all particles involved in the interactions

Radiation energy leaving the volume

R

out

ε = R

– R

+ Σ Q

Energy imparted:

in

out

5