Dose 2016

Basic dosimetric quantities

  

  

(

)

mass absorbed ord transferre energy radiation

kg J

If (m ---> E), Q>0

e- h ν

Q: changes in rest mass

e- h ν

R

R

out

in

If (E ---> m), Q<0

∑ + − = Q R R nonr u out

( ) ( ) u in

energy transferred

ε

tr

kerma

n

r

R −ε=ε

net energy transferred

tr

tr

u

collision kerma

energy imparted (absorbed)

( ) ( ) ( ) ( ) − = c in u out u in

∑ + − +

Q R R R R c out

ε

absorbed dose

radiant energy of ALL uncharged particles leaving the volume

(Attix 1986)