L0_2016_Athens_Physics_Programme

Correction-based algorithms

• use depth dose data measured in water phantoms

with correction for irregular patient contours and

oblique beam incidence.

• inhomogeneity corrected for by accounting for

varying electron densities as compared to the

uniform electron density of a water phantom.

Isodose distributions in patients

Beam data, dose in

reference geometry

Apply corrections

for non-reference

geometry

Dose in non-reference

geometry