Previous Page  1020-1021 / 2239 Next Page
Information
Show Menu
Previous Page 1020-1021 / 2239 Next Page
Page Background

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

10

o

Corrected to infinite SSD

o

Bremsstrahlung dose, is subtracted (assumed constant at all depths less

than Rp

Utrecht 2016

From Handbook of Radiotherapy Physics

Ed Mayles, Nahum and Rosenwald