Advanced Physics for Brachytherapy 2018

Introduction on Dose Optimisation

General Concept: The Mapping process or The Dose Kernel

➔ {D} : D = Ψ . A

{Ψ}

Ψ is the Source/Energy Fluence Function Ψ is for a single stepping source delivery system (afterloader) the Source Propagation Function

= ሶ

.

=

Spatial

ሶ ( ).

. ²

and

Strength Time Pattern

= ෍ =

. .

−

,

ሶ

= ෍ =

( ).

.

.

.

−

,