CPB Ljubljana 2018 course book

Dose gradient in intraluminal brachytherapy

100

Applicator surface

Reference point

10

~ x 8

~ X 2

1

~ X 1.5

dose normalized to 10 mm [ % ]

oesophagus

vagina

bronchus

0,1

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

distance from source axis [ mm ]

Dose variation: applic. surface and 5 mm tissue depth