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|1. (WO2018101237) RIDGE FILTER AND METHOD FOR MANUFACTURING SAME|
|Title:||RIDGE FILTER AND METHOD FOR MANUFACTURING SAME|
A ridge filter 100 provided to a particle beam therapy device, the ridge filter 100 having a repeating structure 101 provided with a plurality of extension parts 101c extending along an incidence direction P of a particle beam 204, and a base plate 102 provided to a bottom surface 101b on the reverse side of the repeating structure 101 from a particle beam 204 incidence side thereof. Furthermore, the repeating structure 101 and the base plate 102 are integrally formed by a shaping method, and the repeating structure 101 and the base plate 102 each comprise a resin layered body.