Advanced Physics for Brachytherapy 2018

HDR Brachytherapy Systems

• High-energy sources for HDR brachytherapy – 192 Ir most common with 60 Co under development – outer diameter < 1 mm – treatments from 2 to 20 minutes D Rx > 12 Gy/h or > 0.2 Gy/min.

– regulatory activity 4 to 12 Ci – shielding/licensing required

• Vendors for HDR 192 Ir brachytherapy RAUs – Nucletron/Elekta (microSelectron + Flexitron) – Varian (VariSource + GammaMed) – BEBIG (MultiSource)