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5.2
Possible Methods of dose calculation
Dosimetrical
quantity
Principle of calculation
Required
methods & ingredients
Absorbed dose
in a medium
factor based
factors such as:
e
-
µ
d
(PDD, TPR), OF, etc
within a 2D/3D matrix
ray tracing algorithm through
a matrix
Advanced methods:
• solution of the
Boltzmann Transport
28
Boltzmann Transport
Equation,
• Monte Carlo simulation
Equation
Monte Carlo code
(particle tracking)
Other
dosimetrical
quantities such
as
KERMA
or
TERMA
fluence based:
combination with
interaction coefficients
fluence, Integration of
interaction coefficients times
fluence over all energies
Superposition method
Superposition/convolution
algorithms