Development of a compact proton scanning system in Uppsala with a moveable second magnet.
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.
Lorin
S
S
Department of Oncology, Radiology and Clinical Immunology, Uppsala University, Sweden. stefan.lorin@onkologi.uu.se
Grusell
E
E
Tilly
N
N
Medin
J
J
Blom
M
M
Ziemann
V
V
Reistad
D
D
Glimelius
B
B
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
D011522:Protons