Author: Long, F.
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WEOBA02 Commissioning of the China-ADS Injector-I Testing Facility 2048
  • F. Yan, J.S. Cao, Y.L. Chi, R. Ge, H. Geng, S. Gu, D.Z. Guo, T.M. Huang, X. Jing, H. Li, R.L. Liu, F. Long, C. Meng, H.F. Ouyang, W.M. Pan, Q.L. Peng, Y.F. Sui, J.L. Wang, S.C. Wang, Z. Xue, Q. Ye, Y.L. Zhao
    IHEP, Beijing, People's Republic of China
  The 10 MeV accelerator-driven subcritical system (ADS) Injector I test stand at Institute of High Energy Physics (IHEP) is a testing facility dedicated to demonstrate one of the two injector design schemes [Injector Scheme-I, which works at 325 MHz], for the ADS project in China. The ion source was installed since April of 2014, periods of commissioning are regularly scheduled between installation phases of the rest of the injector. 6.05 MeV proton energy has been achieved with average beam current of 10 mA by 7 SC spoke cavities at present. This contribution reports the details of the commissioning results together with the challenges of the CW machine commissioning.  
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DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEOBA02  
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THPMW004 Conceptual Design for the HEPS Power Supply System 3540
  • F. Long, Y.P. Liu, X. Qi, Z.H. ZhenHua
    IHEP, Beijing, People's Republic of China
  The High Energy Photon Source (HEPS) requires more than 1600 power supplies with various kinds of power rating. The power supply system includes power supplies for the Booster, Transport, and Storage Ring. The power supply for the Booster is based on 2Hz sinusoidal dynamic current output with 1000ppm current tracking requirement. And the power supply performance requirements of 10ppm long-term current stability are much more rigorous than commercial power supplies. The paper shows the conceptual design of the power supply system for the HEPS and possible solutions to critical technical challenges.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMW004  
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THPMW008 Study of Digital Quench Detection System Based on System-on-Chip Technology 3549
SUPSS081   use link to see paper's listing under its alternate paper code  
  • J.X. Zhang, X.J. Bian, F.S. Chen, J. Cheng, F. Long
    IHEP, Beijing, People's Republic of China
  Quench detection system is a key component of the quench protection system for superconducting magnets. According to operating experience of the quench protec-tion system for BEPCII interaction region superconduct-ing magnets and study in depth on the development process of System-on-Chip, we are establishing a set of digital quench detection system with high integration density and favourable portability by integrating IP cores, custom modules and developing embedded soft-ware on one piece of FPGA chip (Cyclone V SX SoC). The main components of this system are: 1.Hard proces-sor system based-on ARM Cortex-A9 architecture inte-grated with embedded operating system (Linux).2.Floating point DSP based-on soft IP core.3.Function Module Portion designed for different functions such as communicating with front end ADC, timing control, etc. This paper introduces the research progress of the system.
*D.F.Orris, S.Feher, M.J.Lamm, J.Nogiec, S.Sharonov, M.Tartaglia, J.Tompkins, et al.," A digital quench detection system for superconducting magnets", Proceedings of PAC'99, New York, 1999.
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMW008  
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