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This document discusses methods for improving the accuracy of dose calculations in treatment planning systems when modeling MLC leaf positioning. It describes how adjusting parameters like the dosimetric leaf gap (DLG), leaf transmission, and source spot size in the planning system can help match measured dose profiles, but individual adjustments are not sufficient. The document presents a "Modified Eclipse" method that calculates dose as a weighted sum of the planned dose and a dose with the MLCs opened sl

Author

pedroargolopie

Language

EN