SAP2017 - List of Authors (Zeng, Z.J.)

Paper	Title	Page
TUBH4	Central Region Design of the HUST SCC250 Superconducting Cyclotron	127
	Z.J. Zeng, K. Fan HUST, Wuhan, People's Republic of China
	A superconducting cyclotron based proton therapy system is being developed at Huazhong University of Science and Technology (HUST). The compactness of superconducting cyclotron imposes a challenge to the central region design. This paper describes beam dynamic studies in the central region. Beam performance at the initial 4 or so turns is crucial that determines the beam emittance, energy divergence and extraction efficiency. Therefore, considerable efforts have been made to the central region design and optimization. The electric and magnetic field distribution are numerically calculated by the program OPERA. Particle trajectories are simulated by means of the computer code Z3CYCLONE and the track command in OPERA. Finally, an optimum central region configuration is obtained which meets the stringent requirements and further studies is carried out about the beam radial and axial motion based on the designed central region.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-TUBH4
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TUPH18	Internal PIG Source Design for a Superconducting Cyclotron in the HUST Proton Therapy Facility
	Z.Y. Mei, K. Fan, L.X.F. Li, Z.J. Zeng, L.G. Zhang HUST, Wuhan, People's Republic of China
	Funding: national key R&D program, 2016YFC0105303 A 250 MeV isochronous superconducting cyclotron was adopted in the HUST proton therapy facility. For meeting the essential requirement of providing initial proton beam, a cold-cathode PIG internal ion source with constant arc current has been designed carefully. The internal ion source is made up of two halves anode cathode pairs and a slim chimney with diameter of 7 mm for the sake of the very compact structure in the central region. Since the great influence on the initial proton beam quality, the structure of the chimney's slit has been optimized iteratively with the simulation code COMSOL. Besides, to study and optimize the ion source practically, an internal PIG source experimental test bench has been designed meticulously. By changing the main parameters and the relevant structures of the ion source in the test bench, an optimum internal PIG source configuration with high stability proton beam has been obtained experimentally. This paper presents the design of the internal PIG source and the experimental test bench.
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Paper

Title

Page

Central Region Design of the HUST SCC250 Superconducting Cyclotron

127

Z.J. Zeng, K. Fan
HUST, Wuhan, People's Republic of China

A superconducting cyclotron based proton therapy system is being developed at Huazhong University of Science and Technology (HUST). The compactness of superconducting cyclotron imposes a challenge to the central region design. This paper describes beam dynamic studies in the central region. Beam performance at the initial 4 or so turns is crucial that determines the beam emittance, energy divergence and extraction efficiency. Therefore, considerable efforts have been made to the central region design and optimization. The electric and magnetic field distribution are numerically calculated by the program OPERA. Particle trajectories are simulated by means of the computer code Z3CYCLONE and the track command in OPERA. Finally, an optimum central region configuration is obtained which meets the stringent requirements and further studies is carried out about the beam radial and axial motion based on the designed central region.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-TUBH4

Export •

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

TUPH18

Internal PIG Source Design for a Superconducting Cyclotron in the HUST Proton Therapy Facility

Z.Y. Mei, K. Fan, L.X.F. Li, Z.J. Zeng, L.G. Zhang
HUST, Wuhan, People's Republic of China

Funding: national key R&D program, 2016YFC0105303
A 250 MeV isochronous superconducting cyclotron was adopted in the HUST proton therapy facility. For meeting the essential requirement of providing initial proton beam, a cold-cathode PIG internal ion source with constant arc current has been designed carefully. The internal ion source is made up of two halves anode cathode pairs and a slim chimney with diameter of 7 mm for the sake of the very compact structure in the central region. Since the great influence on the initial proton beam quality, the structure of the chimney's slit has been optimized iteratively with the simulation code COMSOL. Besides, to study and optimize the ion source practically, an internal PIG source experimental test bench has been designed meticulously. By changing the main parameters and the relevant structures of the ion source in the test bench, an optimum internal PIG source configuration with high stability proton beam has been obtained experimentally. This paper presents the design of the internal PIG source and the experimental test bench.

Export •

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