Author: Karamyshev, O.
Paper Title Page
TUB02 JINR PROJECTS of CYCLOTRON FOR PROTON THERAPY 140
 
  • O. Karamyshev, K. Bunyatov, S. Gurskiy, G.A. Karamysheva, D.P. Popov, G. Shirkov, S.G. Shirkov, V.L. Smirnov, S.B. Vorozhtsov
    JINR, Dubna, Moscow Region, Russia
  • V. Malinin
    JINR/DLNP, Dubna, Moscow region, Russia
 
  Physical design of the compact superconducting cyclotron SC230 (91.5MHz) has been performed. The cyclotron can deliver up to 230 MeV beam for proton therapy and medico-biological research. As the cyclotron will have a relatively small magnet field, it is possible to use both superconducting and resistive coil. Besides a superconducting cyclotron we simulate design of the cyclotron with a conventional copper water-cooled coil. Such a solution allows us to achieve a lower price compared to superconducting options, but it becomes a bit heavier.  
slides icon Slides TUB02 [8.397 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUB02  
About • paper received ※ 15 September 2019       paper accepted ※ 26 September 2019       issue date ※ 20 June 2020  
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TUP033 Concept of 15 Mev Cyclotron for Medical Isotopes Production 233
 
  • O. Karamyshev
    JINR, Dubna, Moscow Region, Russia
 
  The purpose of this article is to show the prospects of cyclotrons with resistive coils and prove that even in such a well-established field there is still room for innovation. The concept of a 15 MeV cyclotron accelerating H¯ ions with a current of up to 1 mA is presented. The design features significantly lower weight and power consumption, compared to the majority of existing cyclotrons of the same energy.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP033  
About • paper received ※ 15 September 2019       paper accepted ※ 25 September 2019       issue date ※ 20 June 2020  
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MOP001 Design and Commissioning of RF System for SC200 Cyclotron 21
 
  • G. Chen, C. Chao, Y. Chen, K.Z. Ding, G. Liu, X.Y. Long, Z. Peng, Y. Song, C. Yu, X. Zhang, Y. Zhao
    ASIPP, Hefei, People’s Republic of China
  • L. Calabretta, A.C. Caruso
    INFN/LNS, Catania, Italy
  • O. Karamyshev
    JINR/DLNP, Dubna, Moscow region, Russia
  • G.A. Karamysheva, G. Shirkov
    JINR, Dubna, Moscow Region, Russia
 
  The SC200 proton therapy superconducting cyclotron is currently under construction by ASIPP (Hefei, China) and JINR (Dubna, Russia). The radio frequency (RF) system which provides an accelerating electric field for the particles, has been designed and tested in a high-power commissioning. The RF system consists of RF cavity, Low-level RF control system, RF source, transmission network and so on. The main performances of RF cavity meet design and use requirements in the cold test. The RF cavity achieved with an unload Q factor of 5200 at the resonant frequency of 91.5 MHz, 60 kV (Center)~120 kV (Extraction) accelerating voltage and coupling state of S11 <-30 dB. The low-level RF (LLRF) system has been tested with an amplitude stability of <0.2% and a phase stability of <0.1 degree in the high-power commissioning. What is more, the cavity operated in a ~50 kW continuous wave state after 4 weeks RF conditioning. Some risks have exposed at higher power test, but related solutions and improvements have been developed. In future work, the target of RF system is effective operation under the overall assembly of cyclotron after further optimization and RF conditioning.  
poster icon Poster MOP001 [0.720 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP001  
About • paper received ※ 09 September 2019       paper accepted ※ 24 September 2019       issue date ※ 20 June 2020  
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MOP002 Recent Progress on Ion Source of SC200 Cyclotron 24
 
  • Y. Zhao, G. Chen
    ASIPP, Hefei, People’s Republic of China
  • L. Calabretta
    INFN/LNS, Catania, Italy
  • O. Karamyshev
    JINR/DLNP, Dubna, Moscow region, Russia
  • G.A. Karamysheva, G. Shirkov
    JINR, Dubna, Moscow Region, Russia
  • S.W. Xu
    USTC, Hefei, Anhui, People’s Republic of China
 
  Funding: National Natural Science Foundation of China under grant No. 11775258 & 11575237 and International Scientific and Technological Cooperation Project of Anhui (grant No. 1704e1002207).
A 200MeV compact superconducting cyclotron, named SC200, for proton therapy is under development by collaboration of ASIPP (Hefei, China) and JINR (Dubna, Russia). The ion source is a significant subsystem of the cyclotron. A hot cathode internal ion source has been designed and tested for SC200 cyclotron. The ion source has been successfully arc discharged on the test bench. The extracted beam current has been measured over 100 uA and filament lifetime of ion source exceeded 100 h, which indicated that the ion source meets the design requirements. The stability of the filament under strong magnetic field has also been tested and the differences between the two kinds of filament are compared.
 
poster icon Poster MOP002 [0.519 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP002  
About • paper received ※ 09 September 2019       paper accepted ※ 24 September 2019       issue date ※ 20 June 2020  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)