Dose Course 2018_Flipping book

2D detectors [EPID]

Detector scatter kernel

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

EPID measurement

Ion chamber measurement

Ic depth of Dmax

2D: need a second Kernel to model penumbra. Compare profiles in the EPID with those measured in a water phantom.

Small ROI near central axis

http://radonc.ucsf.edu/research_group/jpouliot/tutorial/main.htm