PowerPoint Presentation

• All HDR

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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

Source Strength Measurements