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FANG Shou-Xian, GUAN Xia-Ling, TANG Jing-Yu, CHEN Yuan, DENG Chang-Dong, DONG Hai-Yi, FU Shi-Nian, JIAO Yi, SHU Hang, OUYANG Hua-Fu, QIU Jing, SHI Cai-Tu, SUN Hong, WEI Jie, YANG Mei and ZHANG Jing. ATPF—a dedicated proton therapy facility[J]. Chinese Physics C, 2010, 34(3): 383-388. doi: 10.1088/1674-1137/34/3/015
FANG Shou-Xian, GUAN Xia-Ling, TANG Jing-Yu, CHEN Yuan, DENG Chang-Dong, DONG Hai-Yi, FU Shi-Nian, JIAO Yi, SHU Hang, OUYANG Hua-Fu, QIU Jing, SHI Cai-Tu, SUN Hong, WEI Jie, YANG Mei and ZHANG Jing. ATPF—a dedicated proton therapy facility[J]. Chinese Physics C, 2010, 34(3): 383-388.  doi: 10.1088/1674-1137/34/3/015 shu
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Received: 2009-04-13
Revised: 2009-05-06
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ATPF—a dedicated proton therapy facility

    Corresponding author: TANG Jing-Yu,

Abstract: 

A proton therapy facility based on a linac injector and a slow-cycling synchrotron is proposed. To obtain good treatments for different cancer types, both the spot scanning method and the double-scattering method are adopted in the facility, whereas the nozzles include both gantry and fixed beam types. The proton accelerator chain includes a synchrotron of 250 MeV in maximum energy, an injector of 7 MeV consisting of an RFQ and a DTL linac, with a repetition rate of 0.5 Hz. The slow extraction using the third-order resonance and together with the RFKO method is considered to be a good method to obtain a stable and more-or-less homogenous beam spill. To benefit the spot scanning method, the extraction energy can be as many as about 200 between 60 MeV and 230 MeV. A new method—the emittance balancing technique of using a solenoid or a quadrupole rotator is proposed to solve the problem of unequal emittance in the two transverse planes with a beam slowly extracted from a synchrotron. The facility has been designed to keep the potential to be upgraded to include the carbon therapy in the future.

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