Physics Bucharest 2017

6/3/2017

SMLC – leaf sweep technique

1 dimensional fluence profile

ESTRO physics course 2017

71

Dynamic MLC fields

MLC leaves and possibly also collimator jaws move during irradiation, scanning a variable –width aperture

Position

Minimum gradient needed equal to maximum MLC leaf speed

Distance between curves represents intensity level

ESTRO physics course 2017

72