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How to get the dose distribution?
To get a depth dose curve one has to correct the planar fluence of electrons
The weighting factor g (z ) is determined such that the dose as a function of
depth on the central axis for a given field size exactly equals the measured
central axis depth dose
o
Corrected to infinite SSD
o
Bremsstrahlung dose, is subtracted (assumed constant at all depths less
than Rp
Warsaw 2017
11
From Handbook of Radiotherapy Physics
Ed Mayles, Nahum and Rosenwald
, ,
= ( , , ) ∙ ( )