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Wedge induced beam quality shifts
Warsaw 2017
45
Zhu
et al
[9]
Physical wedges filter the beam, yielding beam hardening. Although,
above approx. 15 MV the pair production process will balance the
hardening, resulting in unaffected (or even softer) beam quality.
PW60=60 deg Physical wedge
VW60=60 deg Virtual wedge
Knöös and Wittgren [16]
T Knöös