title: Development of a compact proton scanning system in Uppsala with a moveable second magnet.
abstract: A scanned proton beam yields dose distributions that in most cases are superior to passively scattered proton beams and to other external radiation treatment modalities. The present paper gives a description of the scanning system that has been developed at the Svedberg Laboratory (TSL) in Uppsala. The scanning technique and the technical design are described. The solution with a small pole gap of the magnets and a moveable second magnet results in a very compact scanning head, which can therefore be incorporated in a gantry of relatively limited size. A prototype was constructed that has been used to realize various dose distributions with a scanned beam of 180 MeV protons at TSL.
authors.affiliation: Department of Oncology, Radiology and Clinical Immunology, Uppsala University, Sweden. stefan.lorin@onkologi.uu.se
authors.forename: S
authors.initials: S
authors.lastname: Lorin
authors.forename: E
authors.initials: E
authors.lastname: Grusell
authors.forename: N
authors.initials: N
authors.lastname: Tilly
authors.forename: J
authors.initials: J
authors.lastname: Medin
authors.forename: M
authors.initials: M
authors.lastname: Blom
authors.forename: V
authors.initials: V
authors.lastname: Ziemann
authors.forename: D
authors.initials: D
authors.lastname: Reistad
authors.forename: B
authors.initials: B
authors.lastname: Glimelius
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D017357:Cyclotrons; D004867:Equipment Design; D006801:Humans; D008280:Magnetics; D009369:Neoplasms / Q000532:radiotherapy; D061766:Proton Therapy; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy / Q000295:instrumentation*; D013548:Sweden; D011522:Protons
chemical_list: D011522:Protons