Dose Course 2018_Flipping book

Dose per MU formalisms: factor-based dose calculations

basic scenario

Isocentric treatment geometry: Open beam & calculation point at isocentre and on CAX

Isocentric reference normalisation geometry

(

)

(

)

D

,

SSD d c ;

D

,

sc

; ,

SAD d

ref

ref

ref

ref

d

M

M

SAD

SAD

d

d

ref

c

c

ref