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Depth (cm)

a

z

b

z

The profiles change smoothly as

functions of

a

z

and

b

z

and hence

are suitable for interpolation with

a

z

and

b

z

as interpolation

variables!

calculation techniques:

Depth invariant (almost) shape relative dose profile – use for

interpolation to save convolutions?

Profiles

correspond to

different

b

z

Primary

Scatter

Primary dose profiles for a 10x10 cm field at 1, 3, 5 and 10 cm depths

Scatter dose profiles at 5, 10, 15 and 20 cm depths

 

primary dose scatter dose

e

e

,

z

z

a r

b r

z

z

A

B

p

r z

r

r

Parameterization reminder: