Dose Course 2018_Flipping book

2D detectors [EPID]

2 - Predict primary fluence from open images

❑ Measure ‘ open ’ EPID image (i.e. without attenuating medium)

❑ Convert to dose at EPID level

❑ Deconvolve EPID dose with lateral scatter kernel to estimate primary fluence

❑ Use primary fluence as input to calculate dose distribution in patient/phantom

primary fluence

dose calculation algorithm

Steciw Renner

Med Phys (32) 2005

J Appl Clin Med Phys (6) 2005

van Elmpt

Med Phys (33) 2006