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6/3/2017
SMLC – leaf sweep technique
71
ESTRO physics course 2017
1 dimensional fluence profile
Dynamic MLC fields
MLC
leaves and possibly also collimator jaws move during irradiation,
scanning a variable
–width aperture
72
ESTRO physics course 2017
Distance between curves
represents intensity level
Position
Minimum gradient needed
equal to maximum MLC leaf
speed