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Summary 1: TPS performance related to penumbra modelling
(beam source modelling and lateral electron transport effects)
Type of dose calculation
model
Homogeneous water
medium
Heterogeneous tissues
Factor-based
Limited performance
Pencil kernel (PB)
Dependant on beam
source model
Lateral electron transport
effects mostly ignored
Point kernel (conv/sup, CC,
AAA)
Dependant on beam
source model
Lateral electron transport
effects approximately
acounted for
Monte Carlo
Dependant on beam
source model
Dependant on beam
source model
Adapted from Anders Ahnesjö