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The leaves are thicker
at the base in order to
follow the divergence of
the beam.
Inter-leaf leakage is
minimized through
“tongues” and “grooves”.
Huq
et al
[5]
6 MV photons
Siemens 160 MLC & Elekta Agility
Siemens 160 MLC
No backup collimators in place!
Leaf design in the width direction
Dublin 2018