Dose Course 2018_Flipping book

How does the algorithm work?

4 . The attenuation of the beam by the phantom or patient.

5. The distance from the radiation source to the EPID plane and to the dose-reconstruction plane.

6. The scatter within the phantom or patient

dose calculation algorithm

Dose to any point inside the patient

EPID

1. EPID Dose Response 2. Lateral Scatter within the EPID 3. Scatter from the patient

Primary fluence map at EPID plane