IMRT 2018

Static or dynamic delivery

Step-and-shoot IMRT

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– Multitude of low-weighted beamlets – Quick ramp-up of accelerator performance required

• Sliding-window IMRT and VMAT – Dose rate, MLC motion and gantry motion need to be perfectly synchronised – Influence of gravity on MLCs varies with gantry angle – MLC QA, e.g. picket-fence test – Analysis of MLC log-files • Standard IMRT/VMAT plan measured regularly on phantom/array

06/06/2018