Dose Course 2018_Flipping book

Backscatter into the monitor chamber

Varian Clinac 2100C, 10MV

~ 2%

Liu et al Med, Phys. 27(4), 2009

• The effect is included in the measured output factors ( S cp , S c ), and thus in factor-based dose per MU formalisms. But needs to be accounted for separately in model-based dose per MU formalisms.