Assembly for expanding the particle energy distribution of a particle beam, particle therapy assembly and method for expanding the particle energy distribution of a particle beam

摘要

The arrangement (28) has two ripple filters (20a, 20b) positioned in such a manner that one filter is arranged behind another filter in a radiation direction (S), where the filters are made from polymethylmethacrylate. The filters are arranged at a distance of 1m from each other and rotated relative to each other around 90 degrees, such that grooves (26) of the filters run orthogonal to each other. The filters are provided for expending particle energy distribution of a particle beam in the radiation direction. An independent claim is also included for a method for expanding particle energy distribution of a particle beam.