IMRT 2018

Energy spectra of primary photons: Angular dependence

courtesy M. Sikora

In front of flattening filter

“Off-axis softening” (or: “central beam hardening”) effect due to flattening filter: Angular dependence of energy spectra behind FF!

Behind flattening filter

ESTRO IMRT course 2017 Dose Calculation in Static and Rotational IMRT Madrid April 13th, 2017

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