title: [Dual copy-supplement collimator].
abstract: Dual Copy-Supplement Collimator consists of two lead conic sections centered on one common radioactive source and having a lot of small square holes on them. When scanning electron beams strike X-Ray target and create some X-Ray fields while passing through the primary section, they penetrate the secondary section and generate even smaller field units(FU). Using these FUs would compose various treatment fields with different energy (dosage). It is able not only to replace many existing collimators such as MLC, but also to make the conformal radiotherapy easier.
authors.affiliation: Radiation Therapy Department, First Affiliate Hospital, Wenzhou Medical College.
authors.forename: Z K
authors.initials: ZK
authors.lastname: Wang
authors.forename: X
authors.initials: X
authors.lastname: Lian
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
mesh_terms: D004867:Equipment Design; D020266:Radiotherapy, Conformal / Q000295:instrumentation*; D012542:Scattering, Radiation