title: Broad beam three-dimensional irradiation for proton radiotherapy.
abstract: A three-dimensional irradiation system using scatterers for lateral spreading is proposed. This system, which is applicable to proton beams, is easily achieved by ordinary techniques using a movable multileaf collimator, a variable thickness water column, and a computer for their control. Target volumes of convex shape can be irradiated in a three-dimensional way by this method.
mesh_terms: D011522:Protons; D011878:Radiotherapy / Q000295:instrumentation* / Q000379:methods; D012542:Scattering, Radiation
chemical_list: D011522:Protons