ESTRO course Dose Modelling and Verification 2017

423 / 1245

18
Discretization and parameterization:
36 bins 201 bins 106 bins
(default in Oncentra, Monaco)
Discretization into
angular bins
causes 1/r2
dependence in
parameterization
to vanish
Most energy is transported in the forward direction, hence it make sense to
have smaller bins in the forward direction.
 
 
2
2
,
e e
, sin d d d
e e
m
m m
m m
a r b r
m
a r b r
m
A B
h r r r
r
A B
 
W W
 
 f W
W W
   f
W
 

 

  
 
 sin d d r     f   