Cyclotrons2016 - List of Authors (Karamyshev, O.)

Paper	Title	Page
MOP14	Study of the Beam Extraction from Superconducting Cyclotron SC200	87
	K.Z. Ding, Y.F. Bi, G. Chen, Y. Chen, Sh. Du, H. Feng, J. Ge, J. Li, Y. Song, Y.H. Xie, J. Zheng 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
	According to the agreement between the Institute of Plasma Physics (ASIPP) of the Chinese Academy of Sciences in Hefei, China, and Joint Institute for Nuclear Research (JINR), Dubna, Russia, the project of superconducting isochronous cyclotron for proton therapy SC200 is under development at JINR. The cyclotron will provide acceleration of protons up to 200 MeV with maximum beam current ~1 μA. Extraction system of the beam consists of electrostatic deflector and two passive magnetic channels. Electric field strength in deflector does not exceed 170 kV/cm, gradients of magnetic field in channels are in range 2-4 kG/cm.The first of the channels focusing the beam in horizontal plane is subdivided into four parts. Geometry and magnetic field of two and three bars sub channelsare described. Results of the beam tracking inside extraction system are presented. Efficiency of the beam extraction was estimated for different amplitudes of the betatron oscillations in accelerated beam.
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TUP17	Preliminary Design of RF System for SC200 Superconducting Cyclotron	208
	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
	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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THP20	Magnetic System for SC200 Superconducting Cyclotron for Proton Therapy	353
	N.A. Morozov, O. Karamyshev, G.A. Karamysheva, E.V. Samsonov, G. Shirkov JINR, Dubna, Moscow Region, Russia Y.F. Bi, G. Chen, Y. Chen, K.Z. Ding, Sh. Du, H. Feng, J. Ge, J. Li, Y. Song, J. Zheng, J. Zhou ASIPP, Hefei, People's Republic of China
	The superconducting cyclotron SC200 for proton therapy is designing by ASIPP (Hefei, China) and JINR (Dubna, Russia) will be able to accelerate protons to the energy 200 MeV with the maximum beam current of 1 μA. A conceptual design study with 3D codes for the superconducting cyclotron magnet has been carried out during 2015-16 at ASIPP and JINR. The main design considerations are reviewed. The results obtained by numerical field computation for a suitable choice of design parameters are presented. Results of numerical calculations are the basis for technical design of SC200 cyclotron.
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THP27	Research and Development of the Beam Line for SC200 Superconducting Proton Cyclotron
	J. Zheng, Y.F. Bi, G. Chen, Y. Chen, K.Z. Ding, H. Feng, J. Feng, M. Li, Y. Song, Zeng. Zeng 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
	Funding: funded by the governmrnt of Hefei city, China The SC200 superconducting cyclotron for proton therapy is under development by collaboration of Hefei government of China and the institute of plasma physics, Chinese academy of sciences. A fixed energy 200 MeV proton beam with maximum current of 1 μA will be extracted from cyclotron in 2018. The compactness of line, the large 90 degree bending magnet at the end of the gantry, and the degrader is usually causing some problems in this field. We have performed simulations of all the beam line of the SC200 cyclotron and specified the main parameters of the line, such as the emittance after degrader and collimator and the maximum gradient of quadrupole magnet field. On the medical request, we defined the proton channel and several beam lines to special therapy demands. In addition, we maintain mathematical tools for simulations of beam line, degrader, collimator and scanning magnet.
	Poster THP27 [2.612 MB]
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THC03	Compact Superconducting Cyclotron SC200 for Proton Therapy	371
	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
	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.
	Slides THC03 [2.798 MB]
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Paper

Title

Page

Study of the Beam Extraction from Superconducting Cyclotron SC200

87

K.Z. Ding, Y.F. Bi, G. Chen, Y. Chen, Sh. Du, H. Feng, J. Ge, J. Li, Y. Song, Y.H. Xie, J. Zheng
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

According to the agreement between the Institute of Plasma Physics (ASIPP) of the Chinese Academy of Sciences in Hefei, China, and Joint Institute for Nuclear Research (JINR), Dubna, Russia, the project of superconducting isochronous cyclotron for proton therapy SC200 is under development at JINR. The cyclotron will provide acceleration of protons up to 200 MeV with maximum beam current ~1 μA. Extraction system of the beam consists of electrostatic deflector and two passive magnetic channels. Electric field strength in deflector does not exceed 170 kV/cm, gradients of magnetic field in channels are in range 2-4 kG/cm.The first of the channels focusing the beam in horizontal plane is subdivided into four parts. Geometry and magnetic field of two and three bars sub channelsare described. Results of the beam tracking inside extraction system are presented. Efficiency of the beam extraction was estimated for different amplitudes of the betatron oscillations in accelerated beam.

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TUP17

Preliminary Design of RF System for SC200 Superconducting Cyclotron

208

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

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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THP20

Magnetic System for SC200 Superconducting Cyclotron for Proton Therapy

353

N.A. Morozov, O. Karamyshev, G.A. Karamysheva, E.V. Samsonov, G. Shirkov
JINR, Dubna, Moscow Region, Russia
Y.F. Bi, G. Chen, Y. Chen, K.Z. Ding, Sh. Du, H. Feng, J. Ge, J. Li, Y. Song, J. Zheng, J. Zhou
ASIPP, Hefei, People's Republic of China

The superconducting cyclotron SC200 for proton therapy is designing by ASIPP (Hefei, China) and JINR (Dubna, Russia) will be able to accelerate protons to the energy 200 MeV with the maximum beam current of 1 μA. A conceptual design study with 3D codes for the superconducting cyclotron magnet has been carried out during 2015-16 at ASIPP and JINR. The main design considerations are reviewed. The results obtained by numerical field computation for a suitable choice of design parameters are presented. Results of numerical calculations are the basis for technical design of SC200 cyclotron.

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THP27

Research and Development of the Beam Line for SC200 Superconducting Proton Cyclotron

J. Zheng, Y.F. Bi, G. Chen, Y. Chen, K.Z. Ding, H. Feng, J. Feng, M. Li, Y. Song, Zeng. Zeng
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

Funding: funded by the governmrnt of Hefei city, China
The SC200 superconducting cyclotron for proton therapy is under development by collaboration of Hefei government of China and the institute of plasma physics, Chinese academy of sciences. A fixed energy 200 MeV proton beam with maximum current of 1 μA will be extracted from cyclotron in 2018. The compactness of line, the large 90 degree bending magnet at the end of the gantry, and the degrader is usually causing some problems in this field. We have performed simulations of all the beam line of the SC200 cyclotron and specified the main parameters of the line, such as the emittance after degrader and collimator and the maximum gradient of quadrupole magnet field. On the medical request, we defined the proton channel and several beam lines to special therapy demands. In addition, we maintain mathematical tools for simulations of beam line, degrader, collimator and scanning magnet.

Poster THP27 [2.612 MB]

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THC03

Compact Superconducting Cyclotron SC200 for Proton Therapy

371

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

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.

Slides THC03 [2.798 MB]

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