Author :
Umezawa, M. ; Sakurabata, H. ; Tadokoro, M. ; Ootsuka, H. ; Nishiuchi, H. ; Saito, K. ; Matsuda, K. ; Kosugi, N. ; Hiramoto, K. ; Mori, Y. ; Machida, S. ; Molodojentsev, A. ; Takada, Y. ; Maruhashi, A. ; Nohtomi, A. ; Sakae, T. ; Yasuoka, K.
Author_Institution :
Power & Ind. Syst., Hitachi Ltd., Ibaraki, Japan
Abstract :
Beam commissioning of the new proton therapy system for University of Tsukuba was started in September 2000. The present system employs a synchrotron with a maximum energy of 250 MeV and two rotating gantries. The beam was successfully accelerated up to 250 MeV and transported to the irradiation nozzles. The position of the beam extracted from the synchrotron was confirmed to be very stable and sufficient flatness for the irradiation area was realized by using the dual ring double scattering method developed at University of Tsukuba. Furthermore, synchrotron operation triggered by patient respiration signal was succeeded
Keywords :
particle beam extraction; proton accelerators; radiation therapy; synchrotrons; 0 to 250 MeV; University of Tsukuba; beam commissioning; beam extraction; dual ring double scattering; irradiation nozzles; patient respiration signal; proton therapy system; rotating gantries; synchrotron; Acceleration; Magnetic field measurement; Magnets; Medical treatment; Particle beams; Power supplies; Proton accelerators; Resonance; Structural beams; Synchrotrons;
