ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

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9

ESTRO IGRT 2008

9

Attenuation Process

Mass coeff. dependence

Raleigh scattering

Z

Photo-electric effect

Z

3

Compton scattering

(only e

-

density)

Pair production

Z

2

kV

MV

kV vs MV - Contrast