Author: Zhang, X.Z.
Paper Title Page
MOA1
High intensity highly charged ion beams production and operation at IMP  
 
  • L.T. Sun, B.M. Wu, C. Qian, E.M. Mei, H.W. Zhao, J.B. Li, J.D. Ma, L. Zhu, L.B. Li, L.X. Li, S.J. Zheng, W. Lu, W. Wu, W.H. Zhang, X.J. Ou, X.Z. Zhang, Y.C. Feng
    IMP/CAS, Lanzhou, People’s Republic of China
  • X. Wang
    PSI, Villigen PSI, Switzerland
 
  Funding: National Natural Science Foundation of China (Grant Nos. 12025506, 11427904)
Charged by the existing operation facility HIRFL and HIAF one of the next generation heavy ion facilities under construction, high intensity high-charge state heavy ion beams production is in the high priority of research and development. For this purpose, several high performance ECR ion sources have been successively developed and put in routine operation. The recently developed FECR or the First 4th generation ECR ion source has employed the cutting-edge technologies for the development of a hybrid superconducting magnet using Nb₃Sn and NbTi superconductors. Operating at 28-45 GHz, FECR will give its first plasma and intense beam production. Other than ion sources development, new technologies development and new insights into high performance ECR ion source have led to increasingly ion beam intensities increase in both cw or pulsed modes. In this talk, high performance ion source development will be presented. A general review of the recent high intensity ion beam production progress at IMP and the routine operation for heavy ion accelerators will be made.
 
slides icon Slides MOA1 [9.880 MB]  
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MOC3
Challenges in production of intense metallic ion beams at IMP  
 
  • W. Lu, C. Qian, H.W. Zhao, H.Y. Ma, L.T. Sun, L.B. Li, L.X. Li, X.Z. Zhang, Y.C. Feng
    IMP/CAS, Lanzhou, People’s Republic of China
 
  Since the development of inductive heating oven in 2019 [1], several intense highly charged metallic ion beams have been produced for different requirements at IMP (Institute of Modern Physics). According to the material characteristics, we used different forms of metal materials, including metal elements (Cr, Mn, Ni, Fe), oxides (UO₂), fluoride or iodide (ZrF₄, SrF₂, CsI), etc. Detail experiments setup and testing results will be presented in this contribution.  
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TUP01 Operation with the LAPECR3 ion sources for cancer therapy accelerators 91
 
  • J.Q. Li, C. Qian, J.D. Ma, L.T. Sun, X.Z. Zhang, H.W. Zhao, Y. Cao
    IMP/CAS, Lanzhou, People’s Republic of China
  • H.W. Zhao
    UCAS, Beijing, People’s Republic of China
  • G. Jin
    LANITH, Lanzhou, People’s Republic of China
 
  An all-permanent magnet electron cyclotron resonance ion source-LAPECR3 (Lanzhou All Permanent magnet Electron Cyclotron Resonance ion source No.3) had been developed as the C⁵⁺ ion beam injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009 in China. The first HIMM demo facility was built in Wuwei city in 2015, which had been officially licensed to treat patients in early 2020. The facility has been proven to be very effective, and more than 1000 patients have been treated so far. In order to prevent ion source failure, each facility employs two identical LAPECR3 ion sources to supply C⁵⁺ beam. At present, there are eight HIMM facilities under construction or in operation, and more than 16 LAPECR3 ion sources have been built. In order to improve the performance of the ion source for long term operation, some techniques were employed to optimize source performance and to avoid the damage of key equipment. This paper will introduce the operation status of LAPECR ion sources at these HIMM facilities and present the latest results of carbon beam production.  
poster icon Poster TUP01 [1.475 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ECRIS2024-TUP01  
About • Received ※ 10 September 2024 — Revised ※ 14 September 2024 — Accepted ※ 27 May 2025 — Issued ※ 26 June 2025
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