Advanced Brachytherapy Physics - Vienna 2016

• All HDR 192 Ir sources can have RAKR measured by physicist

• Using PSDL traceably-calibrated equipment for RAKR measurement

• For the eBT sources, only the Axxent has direct traceability to PSDL

• INTRABEAM and esteya sources do not yet have direct traceability physicist may use AAPM TG 61 calibration method if they know the – - electron scatter/absorber thickness and the HVL for their device