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5.2

Establishing a "transport formula"

A model equation for the fluence of the electrons and

positrons within a volume of interest can be derived from the

particle transportation and conservation within a small volume

element

V.

The following is simply a book keeping process of particles in

the phase space*.

Particles refer to:

1) photons

2) electrons

3) positrons

*) E BOMAN, Thesis, University of Kuopio, Finland, 2007

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