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Calculation object approximations
Pencil beam kernel
Calculation
point
0
Primary
deposition
volume
z
The depth (
z
) is generally assumed to be
constant within the lateral integration plane
during calculation of the scatter dose to a
point.
Calculation
point
0
Primary
deposition
volume
z
Scatter overestimated
Calculation
point
0
Primary
deposition
volume
z
Scatter underestimated
Errors cancel (roughly)
Calculation
point
0
Primary
deposition
volume
z