CPB Ljubljana 2018 course book

2/ ln T 1 1 2



 

T 4427 .1

2/1

Dose from Dose-Rate



TG-43 derives the Initial Dose Rate: T >> τ

. . (1 − − ൗ )

,

= ሶ

, , 0

This is e.g. the case for permanent implants with 125 I or 103 Pd ! u : is a units conversion factor to convert the dose rate expressed in cGy h -1 and considering the time unit of the value T to the desired dose unit, Gy or cGy. k