CPB Ljubljana 2018 course book

Depth Dose Curve: BRT versus EBRT EBRT: Photonen 4, 6, 10 & 18MV ??? BRT: Photonen 20, 30, 40, 60, … 600keV ???

10 : 1

ERT

BRT

0 5 10 15 20 25 30 35 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 10 MV 18 MV 6 MV 4 MV

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0

20 keV 25 keV 30 keV 40 keV 50 keV 60 keV 70 keV 80 keV 90 keV

100 keV 150 keV 200 keV 300 keV 400 keV 667 keV

Depth Dose

Dose Rate Normalized to 1.0 cm

Depth (cm)

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Radial Distance (cm)