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The resulting penumbra is not only dependent on the leaf edges,
but also on the location of the MLC in the treatment head.
@
d
max
(not Agility)
MLC penumbras (motion direction)
40
Huq
et al
[5]
46 cm
Siemens 160 MLC
53.3 cm
37.9 cm
37.3 cm
(F)
To
geometric penumbra
Numbers equal
SCD (outer edge)
Utrecht 2016