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2D detectors [EPID]
Louwe
Med Phys (30), 2003
Wendling
Med. Phys. (33), 2006
Med. Phys.(36), 2009
Olaciregui-Ruiz Phys. Med.Biol. (58), 2013
Ian M Hanson Phys. Med.Biol. (59), 2014
EPID
dose
calculation
algorithm
4. Back-project to dose grid from transit images
❑
Measure open and transit EPID dose image
❑
Estimate and subtract EPID and patient/phantom
scatter
❑
Back-project primary dose to multiple planes to
form dose grid using CT data
❑
Total dose = primary (based on transmission)+
patient scatter