

5.2
Establishing a "transport formula"
(4) The number of particles j produced by the sources inside
the volume
∆
V :
Introducing as the source term for particle j
inside the volume V, we have:
( , , )
j
Q x E
Ω
j,source
d
d
d d d
j
V
N
Q V E
=
Ω
∫
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