Author: Yue, J.H.
Paper Title Page
TUPWC06 Development of Kicker for Transverse Feedback System in BEPCⅡ 295
 
  • J.S. Zhou. Zhou, J.S. Cao, Y.F. Sui, J.H. Yue, J.X. Zhao
    IHEP, Beijing, People's Republic of China
  
  This paper introduces the necessary design parameters of transverse feedback system. Meanwhile, it mainly contains the design of stripline as feedback system kicker. The transverse kicker has 4 striplines, so that it can work in vertical and horizontal area. In the experiment, the shunt impedance is 1500 Ω which is simulated by HFSS and the system only need 120W to suppress the coupled beam bunch instabilities. According to the results of parameter S (1, 1) and S (2, 1), power loss and reflection is convenient. Recently, the prototype is calibrated.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-TUPWC06  
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TUPWC08 The Cold Beam Position Monitors for the C-ADS Injector I Proton Linac 298
 
  • Y.F. Sui, J.S. Cao, H.Z. Ma, Q. Ye, L. Yu, J.H. Yue
    IHEP, People's Republic of China
  
  Funding: Work supported by China ADS Project (XDA03020000) and the National Natural Science Foundation of China (NO. 11205172, NO. 11475204)
The injector I of China Accelerator Driven Subcritical system (C-ADS), which is composed of an ECR ion source, a low energy beam transport line (LEBT), a radio frequency quadrupole accelerator (RFQ), a medium energy beam transport line (MEBT) and cryomodules with SRF cavities to boost the beam energy up to 10 MeV. The injector linac is equipped with beam diagnostics. Cold beam position monitor(BPM) is one of instrumentations of the injector. This paper describes the design and fabrication of the cold BPM pick-ups, and also the application of the BPM in commissioning of SRF cavities. Discussion of the promotion and other aspect will also be presented. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-TUPWC08  
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WEPCC13 Preliminary Study on IPM for CADS Injector I 381
 
  • J. He, J.S. Cao, Y.F. Sui, J.H. Yue
    IHEP, People's Republic of China
  
  Beam profile determination at high intensity hadron accelerators implies the usage of non-invasive methods. The transverse profile of the beam is monitored via detecting the ionization products produced by the collision of proton with residual gas in the vacuum pipe. High voltage electrodes are used for producing guide electrical field and MCP for amplify the signal. The screen and CCD system are used for position detection. An ionization profile monitor is designed and manufactured. It has been installed on the ADS injector I. The signal intensity of ionization products matches the theory's expectation. Experiments result shows that it is a useful tool to measure the profile of proton beam.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPCC13  
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