Advanced Physics for Brachytherapy 2018

3. Higher order of scatter

I have to repeat the method 2 times:

An analogous recursive equation applies with the difference that H msc is better fit by a bi-exponential function

→ S

→ CC with h

→ D

D

prim

1sc

1sc

1sc

C

c

r

exp( − + − D

) rd

exp(

)

→ S

→ CC with H

→ D

D









1sc

2sc

msc

msc

r msc 

H

(

) , =

2

r

Additional input is required to calculate inhomogeneity corrections: the energy spectrum of msc photons generated at each point