Abstract: The present invention concerns a radiation inverse treatment planning system for a linear accelerator. The system includes a radiation source, configured for delivering individual radiotherapeutic dose shots (aj), each individual radiotherapeutic dose shot having a predetermined location and incidence angle inside and/or outside a target area, a size and a shape. The system also includes at least a data bus system (102), and a memory (106) coupled to the data bus system (102), wherein the memory (106) includes a computer usable program code. The system also includes a processing unit (104) coupled to the data bus system (102), wherein the processing unit (104) is configured to execute the computer usable program code to pre-compute (10) a set of individual radiotherapeutie dose shots (aj), and associate (40) a weight (sj) to each individual radiotherapeutic dose shot (aj), based on one or more constraints (20).

Abstract: The present invention concerns an inverse treatment planning system. The system includes, at least a data bus system (102), a memory (106) coupled to the data bus system (102), and a processing unit (104) coupled to the data bus system (102). The processing unit (104) is configured to execute the instructions to pre-compute (10) a set of individual dose shots (aj), each individual dose shot having a predetermined location inside and/or outside a target area, a size and a shape. The processing unit also associates (40) a weight (sj) to each individual dose shot (aj), based on one or more constraints (20). The processing unit (104) further executes the instructions to find (30) the sparsest subset of individual dose shots, so as to satisfy said one or more constraints (20).