title: Adjustable compensators for whole-brain irradiation.
abstract: A compensator for use in irradiating the whole brain with parellel opposed lateral fields was made from a stack of thin tempered aluminum plates. This configuration gives a wide latitude of degrees of compensation and can accommodate a broad range of head sizes. Dosimetry studies indicate that overcompensation may be desirable to reduce the dose to the mid-coronal plane of the skull and scalp without seriously affecting the dose uniformity in the treatment volume.
mesh_terms: D000535:Aluminum; D001932:Brain Neoplasms / Q000532:radiotherapy*; D003201:Computers; D006801:Humans; D008433:Mathematics; D008961:Models, Structural; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy / Q000295:instrumentation*; D012542:Scattering, Radiation
chemical_list: D000535:Aluminum