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TUPLS078 |
Design Studies of the Compact Superconducting Cyclotron for Hadron Therapy
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1678 |
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- Y. Jongen, W. Beeckman, W.J.G.M. Kleeven, D. Vandeplassche, S.E. Zaremba
IBA, Louvain-la-Neuve
- V. Aleksandrov, G.A. Karamysheva, Yu. Kazarinov, I.N. Kian, S.A. Kostromin, N.A. Morozov, E. Samsonov, V. Shevtsov, G. Shirkov, E. Syresin
JINR, Dubna, Moscow Region
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An overview of the current status of the design of the compact superconducting isochronous cyclotron C400 able to deliver ion beams with a charge to mass ratio of 0.5 is given. This cyclotron is based on the design of the current PT (proton therapy) C230 cyclotron and will be used for radiotherapy with proton, helium or carbon ions. 12C6+ and 4He2+ ions will be accelerated to 400 MeV/u energy and extracted by electrostatic deflector, H2+ ions will be accelerated to the energy 260MeV and extracted by stripping. Computer modeling results on the axial injection system, magnetic system, inflector and center design are given. Results of simulations of the ion beam injection, acceleration and extraction are presented.
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TUPLS119 |
Design Study of the Axial Injection System of C400 Cyclotron
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1786 |
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- V. Shevtsov, V. Aleksandrov, Yu. Kazarinov
JINR, Dubna, Moscow Region
- Y. Jongen, D. Vandeplassche
IBA, Louvain-la-Neuve
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Computer modeling results on the axial injection system design are given. Results of simulations of the Carbon, Hydrogen and Helium ion beam injection are presented.
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WEPCH082 |
Simulation of Ions Acceleration and Extraction in Cyclotron C400
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2113 |
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- Y. Jongen, W.J.G.M. Kleeven
IBA, Louvain-la-Neuve
- G.A. Karamysheva, S.A. Kostromin, N.A. Morozov, E. Samsonov
JINR, Dubna, Moscow Region
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The Belgian company IBA, together with scientists of the JINR in Dubna is designing a superconducting isochronous cyclotron for therapy by Carbon beams. The new cyclotron C400 has to deliver carbon ions with energy 400 MeV/amu and protons with energy close to 250 MeV. The cyclotron has a compact type superconducting magnet, with a pole radius of 187 cm. The axial focusing is provided by four sectors, with a spiral angle increasing to a maximum value close to 70° at maximum energy. With this design, an axial betatron frequency is maintained during most of the acceleration. The beam acceleration is provided by two spiral dees located in opposite valleys. The dee voltage increases from 100 kV at the center to 200 kV at extraction. The paper presents the analysis of the beam acceleration in the proposed new cyclotron. During the acceleration, several resonance lines are crossed, but the paper demonstrates that this resonance crossing is done without damaging the beam properties. Extraction of the Carbon ions is done by an electrostatic deflector, followed by magnetic correctors. Protons are extracted at lower energy by stripping 2H+1 ions.
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WEPLS092 |
Computer Modeling of Magnetic System for C400 Superconducting Cyclotron
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2589 |
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- Y. Jongen, D. Vandeplassche, S.E. Zaremba
IBA, Louvain-la-Neuve
- G.A. Karamysheva, N.A. Morozov, E. Samsonov
JINR, Dubna, Moscow Region
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The superconducting cyclotron (C400) is designed at IBA (Belgium) able to accelerate carbon ions at 400 MeV/nucleon. By computer simulation with 3D TOSCA code, the cyclotron magnetic system principal parameters were estimated (pole radius 187 cm, outer diameter 606 cm, valley depth 60 cm, height 276 cm). The required isochronous magnetic field was shaped with an accuracy of ± 2 mT. Four-fold symmetry and spiralized sectors with elliptical gap (minimal 12 mm at extraction) provide the stable beam acceleration till 15 mm from the pole edge.
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