Dose Course 2018_Flipping book
calculation techniques:
Common approach for heterogeneity handling:
primary dose, use PK primary dose data for the depth z rad :
z
1
( ) ( ) z
z
d z z
=
rad
water 0
scatter dose, apply a 1D convolution derived correction factor :
z
( )
z
d t t
−
( )
d e
z z
0
z
(
)
rad z z −
−
0
rad =
CF =
e
S
z
z
z
t
−
d
w
d e z
0
w
0
This is the methods used for PK kernel in (at least) Oncentra
A Ahnesjö et al (1992) Med Phys 19, 263-273
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