Dose 2016

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

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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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