Cyclotrons2016 - List of Keywords (plasma)

Paper	Title	Other Keywords	Page
THP15	Analysis of the Plasma Characteristics for Beam Current Optimization for TR-13 Cyclotron	ion, ion-source, power-supply, extraction	339
	W.J. Jun, J.-S. Chai, M. Ghergherehchi, D.H. Ha, H.S. Kim, J.C. Lee, S.C. Mun, H. Namgoong, Y.H. Yeon SKKU, Suwon, Republic of Korea
	There is a TR-13 cyclotron that extracts energy of 13 MeV protons which is located in Sungkyunkwan University. The components of the whole cyclotron are so old that cannot reproduce the situation that had been operated generally. So the researchers in this laboratory were eager to improve the technical problems of the components and finally optimize the beam profile. The finally extracted beam current is critically depends on the initially extracted beam from the ion source injection system (ISIS). The ISIS is composed of several electrical instruments. The voltage or current which is applied to these components can affect the finally extracted beam profile. However, the original values for the input voltage or current is almost fixed to special values that had been written in the operation manual. It means that the bad condition of this cyclotron cannot be matched for these values which had been conducted in the best condition of the operation. So, by using the programmable logic controller (PLC), it is possible to use varying inputs in various conditions, and the beam current is able to be stabilized much better than applying the constant input values. Finally, this paper would show the tendency of the plasma generation in terms of modulating the applying input values which occurs inside the ion source chamber. It represents the plasma characteristics that critically influence the beam current.
	Poster THP15 [2.407 MB]
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THP20	Magnetic System for SC200 Superconducting Cyclotron for Proton Therapy	cyclotron, proton, extraction, simulation	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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Paper

Title

Other Keywords

Page

THP15

Analysis of the Plasma Characteristics for Beam Current Optimization for TR-13 Cyclotron

ion, ion-source, power-supply, extraction

339

W.J. Jun, J.-S. Chai, M. Ghergherehchi, D.H. Ha, H.S. Kim, J.C. Lee, S.C. Mun, H. Namgoong, Y.H. Yeon
SKKU, Suwon, Republic of Korea

There is a TR-13 cyclotron that extracts energy of 13 MeV protons which is located in Sungkyunkwan University. The components of the whole cyclotron are so old that cannot reproduce the situation that had been operated generally. So the researchers in this laboratory were eager to improve the technical problems of the components and finally optimize the beam profile. The finally extracted beam current is critically depends on the initially extracted beam from the ion source injection system (ISIS). The ISIS is composed of several electrical instruments. The voltage or current which is applied to these components can affect the finally extracted beam profile. However, the original values for the input voltage or current is almost fixed to special values that had been written in the operation manual. It means that the bad condition of this cyclotron cannot be matched for these values which had been conducted in the best condition of the operation. So, by using the programmable logic controller (PLC), it is possible to use varying inputs in various conditions, and the beam current is able to be stabilized much better than applying the constant input values. Finally, this paper would show the tendency of the plasma generation in terms of modulating the applying input values which occurs inside the ion source chamber. It represents the plasma characteristics that critically influence the beam current.

Poster THP15 [2.407 MB]

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THP20

Magnetic System for SC200 Superconducting Cyclotron for Proton Therapy

cyclotron, proton, extraction, simulation

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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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)