CPB Ljubljana 2018 course book

Dose calculation – AAPM-TG43: The Anisotropy Function F(r, θ):

F(r, θ): The anisotropy function that considers the effect of absorption and scatter of the photons within the source active core and encapsulation material as well as part of the driving cable if any. F(r, θ) is a dimensionless quantity. It is always F(r, θ=90 0 ) = 1.00 F(r, θ) depends in general on source design and radionuclide. !

F(r, θ)