Author: Zhang, L.G.
Paper Title Page
MOP035 Extraction Beam Orbit of a 250 MeV Superconducting Cyclotron 113
  • H.J. Zhang, K. Fan, Y. Yan
    Huazhong University of Science and Technology, State Key Laboratory of Advanced Electromagnetic Engineering and Technology,, Hubei, People’s Republic of China
  • Y.-N. Rao
    TRIUMF, Vancouver, Canada
  • L.G. Zhang
    HUST, Wuhan, People’s Republic of China
  Funding: The work is supported by the National Nature Science Foundation of China (11775087).
A superconducting cyclotron based on proton therapy facility is being developed at Huazhong university of science and technology (HUST). Due to the compact size of the main magnet, the beam orbits at the extraction region are distributed densely, which creates difficulties for beam extraction leading to severe beam loss. In order to deal with these challenges, the orbit precession method has been employed in the extraction system design. In this paper, we introduce a method of employing a first harmonic field near the nur=1 resonance where the beam energy is about 248 MeV to adjust the amplitude of beam orbit oscillation. The optimum amplitude and phase of the first harmonic field are designed to obtain a large turn separation in the extraction region. Three different ways of generating the first harmonic field are compared for optimization.
poster icon Poster MOP035 [0.777 MB]  
DOI • reference for this paper ※  
About • paper received ※ 15 September 2019       paper accepted ※ 24 September 2019       issue date ※ 20 June 2020  
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THB03 Conceptual Design of TR100+: An Innovative Superconducting Cyclotron for Commercial Isotopes Production 298
  • Y.-N. Rao, R.A. Baartman, Y. Bylinskii, T. Planche, L.G. Zhang
    TRIUMF, Vancouver, Canada
  Utilizing dedicated cyclotrons to produce medical isotopes is an arising technology in hospitals across Canada. Thus, in January 2015, the CycloMed99 team, led by TRIUMF, demonstrated a breakthrough in producing the world’s most highly used medical isotope, technetium-99m (Tc-99m), on existing medical cyclotrons. Now we propose to design an innovative superconducting cyclotron for production of commercially valuable radioisotopes. This project will be focusing on a proton energy of 70-150 MeV and proton current of 2 mA. In this energy range, numerous increasingly demanded radio­nuclides can be produced, either as parent nuclei for generator use, or directly as a active pharmaceutical ingredient, e.g. Strontium-82 (Sr-82), Actinium-235 (Ac-235) and Bismuth-213 (Bi-213). Our machine shall be designed to accelerate H2+, by injection from external ion source and extraction by stripping. This shall allow to simultaneously extract multiple cw proton beams of variable currents and potentially variable energies to multiple experimental stations with extremely high extraction efficiency. The basic parameters of the machine and the simulations of stripping extraction will be presented.  
slides icon Slides THB03 [3.030 MB]  
DOI • reference for this paper ※  
About • paper received ※ 17 September 2019       paper accepted ※ 25 September 2019       issue date ※ 20 June 2020  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)