Author: Gao, D.Q.
Paper Title Page
MOZBA01 Present Status of HIRFL Complex in Lanzhou 18
 
  • Y.J. Yuan, D.Q. Gao, L.Z. Ma, L.J. Mao, R.S. Mao, J. Meng, Y.W. Su, L.T. Sun, Y.Y. Wang, J.X. Wu, J.W. Xia, G.Q. Xiao, Z. Xu, J.C. Yang, W.Q. Yang, Q.G. Yao, X. Yin, B. Zhang, W. Zhang, H.W. Zhao, Z.Z. Zhou
    IMP/CAS, Lanzhou, People’s Republic of China
 
  Heavy Ion Research Facility in Lanzhou (HIRFL) is a cyclotron, synchrotron and storage ring accelerator complex, which accelerates ions of hydrogen to uranium from low to medium energy. Since the complete of HIRFL-CSR project in 2008, under the support from CAS, efforts have been put to improve the infrastructure for machine performance, including improvement of EMC environments, power distribution stations, PS stations, cooling water system, RF system of cyclotrons and adoption of EPICS control system, etc. New generation SC ECR source-SECRAL2 with high performance is put into operation. Experiments of electron cooling with pulsed electron beam are performed for the 1st time. Stochastic cooling and laser cooling are realized in CSRe. The performance of RIBLL2 and CSRe are gradu-ally improved. The ISO mode of CSRe for precise atomic mass measurements is well studied and reaches state-of-art mass resolution of storage rings. The operation status and enhancement plan of HIRFL will be briefly reported in this paper.  
slides icon Slides MOZBA01 [37.124 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOZBA01  
About • paper received ※ 20 October 2018       paper accepted ※ 23 October 2018       issue date ※ 05 November 2019  
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MOPB04 Design of Fast Pulse Generator for Kicker Power Supply in HIAF 40
 
  • Y. Liu, D.Q. Gao, J. Gao, J.B. Shangguan, J. Zhao
    IMP/CAS, Lanzhou, People’s Republic of China
 
  【Abstract】-Kicker power Supply is one of the key components in the injection and extraction system of HIAF (High Intensity Heavy Ion Accelerator Facility, the 12th five-year national big science project). The PFN-Marx generator technology based on solid-state switch IGBT will be applied to HIAF-Kicker power supply. Hundreds of fast pulse signals are required for these IGBTs’ control. The PFN-Marx generator has many requirements for their control signals, such as adjustable pulse-widths and time-delay. The maximum value of adjustment accuracy of the pulse-widths and delay among multiple control signals need to be 10ns. In this paper, a fast pulse generator circuit with adjustable pulse-widths and time-delay is designed for HIAF-Kicker power supply. This design is based on an emerging ARM-embedded FPGA. And the test results shown that the design can meet the required performance.  
poster icon Poster MOPB04 [0.363 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOPB04  
About • paper received ※ 19 October 2018       paper accepted ※ 23 October 2018       issue date ※ 05 November 2019  
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MOPB07 The Digital Controller for Power Supplies in HIAF 46
 
  • Y.L. Tan, Y. Cui, D.Q. Gao, Y.Z. Huang, J.Q. Li, H. Zhang, S. Zhang
    IMP/CAS, Lanzhou, People’s Republic of China
 
  Funding: Huizhou Ion Science Research Center
HIAF (High Intensity heavy ion Accelerator Facility) is a project proposed by IMP (Institute of Modern Physics, Chinese Academy of Sciences). This paper designs a digital controller for Bring in HIAF dipole power supplies system, which is several circuit boards consist of high precision ADC, optical fiber module, DDR3 SDRAM, Gigabit Ethernet module. It uses Cyclone V SX SoC FPGA, which integrated with dual-core ARM Cortex-A9 MP Core processor. This paper explains the hardware and software architecture of the controller and how can it improve power supplies performances. The FPGA finishes the PI regulating and PWM modulation. The ARM is responsible for data pre-setting, web service, database, and power supplies detection and protection management. At the end, this paper gives the output measurements when the controller is used in the prototype, which verifies the rationality and reliability of the design.
 
poster icon Poster MOPB07 [1.345 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOPB07  
About • paper received ※ 21 October 2018       paper accepted ※ 23 October 2018       issue date ※ 05 November 2019  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)