Speaker
Description
We present lattice design for the future proton FLASH therapy facility for Stony Brook University Hospital. It will be able to deliver protons to the patients with a dose of 4 Grays per 100 ms using permanent magnets. The facility includes: (1) the commercial injector cyclotron to be selected within the maximum kinetic energies between 10-30 MeV. It is followed by a proton transfer beam line to connect the injection cyclotron to (2) the race-track shape fast-cycling permanent magnet accelerator. It accelerates protons in the kinetic energy range between 10-250MeV. The synchrotron has fixed betatron tunes allowing 6000 to 7000 turns per 500 Hz cycle. The fast extraction kickers and septa are connected to (3) the permanent magnet FFA gradient beam line able to transfer protons within the kinetic energy range between 70-250 MeV. At the end of the facility is (4) the isocentric permanent magnet gantry with the transverse scanning system above the patient. The rotating gantry is built using permanent magnets with linear magnetic field. It precisely delivers protons within the same kinetic energy range between 70-250 MeV. We presented recent commissioning results of the part of the synchrotron arc [1, 2, 3]. The fast transverse scanning system has fewer number of spots as the time of the patient exposure is only 100 ms.
Funding Agency
This manuscript has been authored by employees of Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy.
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