CPB Ljubljana 2018 course book

Introduction on Dose Optimization

The “System-Law” in Brachytherapy: the Dosimetric Kernel

0 1 2 3 4 5 6 7 8 9 10 Depth Dose

192 Ir 60 Co …

1

D

T





2

r

0,5 1,0 1,5 2,0 2,5 3,0

Distance (cm)

Approximation: dose is proportional with time and inversely proportional with square of distance