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TUP17 |
Preliminary Design of RF System for SC200 Superconducting Cyclotron |
208 |
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- G. Chen, Y.F. Bi, C. Chao, Y. Chen, K.Z. Ding, H. Feng, Y. Song, S.Y. Wang, M. Xu, Q. Yang, X. Zhang, J. Zheng, J. Zhou
ASIPP, Hefei, People's Republic of China
- O. Karamyshev, G.A. Karamysheva, N.A. Morozov, E.V. Samsonov, G. Shirkov
JINR, Dubna, Moscow Region, Russia
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The SC200 is a compact superconducting cyclotron, which is designed under the collaboration of ASIPP (Hefei, China)-JINR (Dubna, Russia), for proton therapy. The protons are accelerated to 200 Mev with maximum beam current of 500 nA. The very high mean magnetic field of 2.9T-3.5T (center-extraction) challenges the design of radio frequency (RF) system because of the restricted space. The orbital frequency of the protons is ~45 MHz according to the magnetic field and beam dynamics. The RF system is supposed to operate on 2rd harmonic of ~90 MHz. Two Dee cavities located at the valley of the magnet have been adopted. The preliminary design of RF system, which consists of active tuning, coupling and so on, is presented. The computation and simulation showed good results to ensure the Dee cavities operating at the 2rd harmonic and the proper variation of acceleration voltage versus radius.
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THC03 |
Compact Superconducting Cyclotron SC200 for Proton Therapy |
371 |
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- G.A. Karamysheva, S. Gurskiy, O. Karamyshev, N.A. Morozov, E.V. Samsonov, G. Shirkov, S.G. Shirkov, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
- Y.F. Bi, G. Chen, Y. Chen, K.Z. Ding, H. Feng, J. Li, Y. Song, Y.H. Xie, Q. Yang, J. Zheng
ASIPP, Hefei, People's Republic of China
- D.V. Popov
JINR/DLNP, Dubna, Moscow region, Russia
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Superconducting cyclotron SC200 will provide acceleration of protons up to 200 MeV with maximum beam current of 1 μA. We plan to manufacture in China two cyclotrons: one will operate in Hefei cyclotron medical center the other will replace Phasotron in Medico-technical Center JINR Dubna and will be used for cancer therapy by protons. Now we present results of simulation of magnetic, acceleratiion and extraction systems.
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Slides THC03 [2.798 MB]
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