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Linear Boltzman Equation
•
Describes the transport of particles through a medium (incl photons)
•
The
linear
equation means particles only interact with medium not with each other i.e.
cross section do not depend on fluence
• No magnetic field is present
•
A
closed
form or
analytical
solution would give the exact solution of the dose
distribution in a irradiated medium e.g. a patient – this is not possible
• Only possible in very restricted problems
•
An
open
form must be used i.e. a
numerical
solution
•
Can use
Monte Carlo
which indirectly can provide an approximate solution
•
Or – use
Deterministic
approaches (Grid Based Boltzmann Solvers GBSS)
•Directly solve BTE
•Inhomogeneities easily handled
•Free of statistical noise
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