Multileaf Collimator Shape Matrix Decomposition............ thomas kalinowski
The most common approach in treatment planning is to divide the optimization into two phases. At ﬁrst step, a set of beam angles and corresponding ﬂuence matrices are determined. In a second step, a sequence of leaf positions for the MLC for each of the angles is determined that yields the desired ﬂuence distribution. Very recently, there have been attempts to combine both steps into one optimization routine [8,20].