Advanced Physics for Brachytherapy 2018

Modern Radiation Therapy

Delivery Technology

Energy  Dwell Position (3D)

ERT

”Spot”

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

Depth Dose

Depth (cm)

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 159 MeV Protons 192 Ir (400 keV) Relative Depth Dose Depth in Water (cm)

BRT

”Spot”