Author: Li, Z.P.
Paper Title Page
TUPO114 Beam Dynamics Studies for the CSNS DTL Due to a Quadrupole Fault 573
 
  • J. Peng, M.T. Li, Y.D. Liu, X.H. Lu, X.B. Luo
    CSNS, Guangdong Province, People’s Republic of China
  • Y.W. An, S. Fu, L. Huang, M.Y. Huang, Y. Li, Z.P. Li, S. Wang, S.Y. Xu, Y. Yuan
    IHEP, Beijing, People’s Republic of China
 
  The China Spallation Neutron Source(CSNS) accelera-tor systems is designed to deliver a 1.6GeV, 100kW pro-ton beam to a solid metal target for neutron scattering research. It consists of a 50keV H Ion Source, a 3MeV Radio Frequency Quadrupole (RFQ), an 80MeV Drift Tube Linac (DTL), and a 1.6GeV Rapid-cycling Synchro-tron (RCS). The DTL consists of four tanks. In 2017, three of four tanks have been commissioned successfully, and beam has been accelerated to 61MeV with nearly 100% transmission. However, in July 2017, one quadrupole contained in the drift tube was found fault, the beam transmission decreased to 80%. A new lattice has been designed and the 100% transmission has recovered. In January 2018, the last tank of the DTL has been commissioned and accelerated the H beam to the design energy of 80MeV for the first time. The commissioning progress and the measurement results before and after lattice adjustment will be presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO114  
About • paper received ※ 12 September 2018      issue date ※ 18 January 2019  
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TUPO115 Beam Parameters Measurement and Correction in CSNS Linac 576
 
  • Z.P. Li, Y. Li
    IHEP, Beijing, People’s Republic of China
  • J. Peng
    CSNS, Guangdong Province, People’s Republic of China
 
  All the beam parameters of China Spallation Neutron Source (CSNS) linac had achieved the acceptance goals in January 2018 after a 2-year commissioning. Parameters of the H beam were carefully studied and corrected. Beam energy was measured and the energy dispersion are reduced. Transverse emittance are obtained by different tools and methods. Linear optics measurements and corrections were carried out under varied beam energies and peak intensities.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO115  
About • paper received ※ 12 September 2018      issue date ※ 18 January 2019  
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THPO032 CSNS Linac Beam Commissioning Tools and Experience 750
 
  • Y. Li, Z.P. Li, S. Wang
    IHEP, Beijing, People’s Republic of China
  • J. Peng
    CSNS, Guangdong Province, People’s Republic of China
 
  The China Spallation Neutron Source (CSNS) successfully accelerated the H beam to 80 MeV in January 2018, marking a key progress in the beam commissioning. One of the keys to success is the development and use of software tools. XAL, a Java-based software infrastructure originally developed by SNS was applied for CSNS beam commissioning. We have developed and transplanted many applications based on XAL. Some of the applications for the Linac are described ,and some experiences are shared.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO032  
About • paper received ※ 12 September 2018      issue date ※ 18 January 2019  
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