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Effect: Fluence optimization
leaf positions
( )
ξ
segment weights
( )
w
e-fluence/opening density
14
energy fluence
( )
w
,
ξΨΨ
=
dose
( )
(
)
w DD
,
ξΨ
=
objective
( )
(
)
(
)
w Df
f
,
ξΨ
=
grad. w.r.t. energy fluence
Ψ Ψ
d
d
d
d
d
d
D
D
f
f
=
grad. w.r.t dose,
D
f
d
d
grad. w.r.t. leaf pos.
ξ
Ψ
Ψ ξ
∂
∂
=
∂
∂
d
d
d
d
D
D
f
f
evaluation
Adapted from
A. Ahnesjö