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6/3/2017
Static
beam off during leaf/gantry/couch motion
slower, simpler
Dynamic
beam on during leaf motion , per beam
faster, less efficient per MU, more complicated to check dose
Dynamic VMAT
beam on during leaf/gantry motion
faster, more complicated to check dose
69
ESTRO physics course 2017
IMRT delivery methods using MLC
SMLC – close-in sequence
70
ESTRO physics course 2017
1 dimensional fluence profile