Through the ridge

摘要

Depth dose distribution of desire precision is formed well in the charged particle beam lighting device which is applied to the corpuscular ray cancer remedy device and the like.Through the ridge filter which possesses the periodic thickness distribution because energy distribution of desire can be given in the corpuscular ray from the corpuscular ray supply system as for the aforementioned ridge filter, in order penetration direction of the corpuscular ray and to become vertical, the plural ridges are arranged in the charged particle beam lighting device which irradiates the above-mentioned corpuscular ray to the suffering lighting body.