Advanced Physics for Brachytherapy 2018

The problem …

Energy [keV]

CSDA-range electrons [g/cm 2 ]

1

1

−



/



[cm]



en

How important is D

in brachy …?

30

1.8E-03 1.2E-02 1.1E-01 4.4E-01

2.5 5.6 8.9

0.56 0.85 0.71 0.58

scat

100 350

It depends on ENERGY!

1000

14

Figure from: Baltas, Sakelliou, Zamboglou (Eds), The Physics of modern brachytherapy for oncology, Taylor & Francis Books Inc, 2006