Dose Course 2018_Flipping book
Collimator leakage - intraleaf and interleaf AA slide
1. Two effects: • Diffused dose from spiky interleaf fluence leakage • Intraleaf attenuation
Intraleaf leakage very small:
−
t
0.0408 18.0 8.0 −
e
→
e
=
0.28%
8 cm tungsten at 3 MeV
Measuements from Arnfield et al , 2000 Med. Phys. 27
8
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