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Monte Carlo based models
❑
Transport
o
MC-models transports particles
generally
in the medium and
interaction is determined from the actual medium
o
EGSnrc, GEANT, Penelope…
o
Patient model can be “fooled” to be scaled water by by changing look-up
tables!
❑
Deposit
o
Energy deposit in each voxel is based on the medium
o
This can be converted to dose in water by the stopping power ratio
❑
We have and/or
o
In commercial system these choices are usually not available
Dublin 2018
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