IMRT 2018
Kernel-based methods: Convolution/Superposition
more realistic situation: Poly energetic incident photons, Homogeneous medium (water)
Dose in point r…
( ) r
( ) ( ,
)
3
D
dE
s rEhsETsd
=
,
−
polyenergetic primary photon source
3+1D- superposition:
weighted superposition of dose contributions for different energies
→ numerical less expedient than the previous idealized situation
s
r
ESTRO IMRT course 2017 Dose Calculation in Static and Rotational IMRT Madrid April 13th, 2017
-30-
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