Author: Yu, C.L.
Paper Title Page
TUBR04 Control System of Cryomodule Test Facilities for SHINE* 353
 
  • H.Y. Wang, G.H. Chen, J.F. Chen, J.G. Ding, M. Li, Y.J. Liu, Q.R. Mi, H.F. Miao, C.L. Yu
    SSRF, Shanghai, People’s Republic of China
 
  Funding: Work supported by Shanghai Municipal Science and Technology Major Project (Grant No. 2017SHZDZX02)
Shanghai HIgh repetition rate XFEL aNd Extreme light facility (SHINE) is under construction. The 8 GeV superconducting Linac consists of seventy-five 1.3 GHz and two 3.9 GHz cryomodules. A cryomodule assembling and test workshop is established. Multiple platforms have been built for cryomodule and superconducting cavity test, including two vertical test platforms, two horizontal test platform, one multiple test platform and one liquid helium visualization platform. The local control systems are all based on Yokogawa PLC, which monitor and control the process variables such as temperature, pressure, liquid level and power of the heater. PID and other algorithms are used to keep liquid level and power balance. EPICS is adopt to integrate these platforms’along with vacuum devices, solid state amplifiers, LLRF and RF measurement system, etc. The details of the control system design, development and commissioning will be reported in this paper.
 
slides icon Slides TUBR04 [22.084 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2021-TUBR04  
About • Received ※ 22 October 2021       Accepted ※ 11 February 2022       Issue date ※ 24 February 2022  
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WEPV040 Design of Machine Protection System for SXFEL-UF 750
 
  • C.L. Yu, J.G. Ding, H. Zhao
    SSRF, Shanghai, People’s Republic of China
 
  Shanghai Soft X-ray Free-Electron Laser (SXFEL) facility is divided into two phases: the SXFEL test facility (SXFEL-TF) and the SXFEL user facility (SXFEL-UF). SXFEL-TF has met all the design specifications and has been available in beam operating state. SXFEL-UF is currently under commissioning and is planned to generate 3 nm FEL radiation using a 1.5 GeV electron LINAC. To protect the critical equipment rapidly and effectively from unexpected damage, a reliable safety interlocking system needs to be designed. Machine Protection System (MPS) is designed by Programmable Logic Controller (PLC) and Experimental Physics and Industrial Control System (EPICS) which is based on a master-slave architecture. In order to meet different commissioning and operation requirements, the management and switching functions of eight operation modes are introduced in the MPS system. There are two FEL line in user facility named SXFEL beamline project (BSP) and undulator (UD) , and the corresponding design of MPS is completed. This paper focuses on the progress and challenges associated with the SXFEL-UF MPS.  
poster icon Poster WEPV040 [0.883 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2021-WEPV040  
About • Received ※ 10 October 2021       Revised ※ 20 October 2021       Accepted ※ 21 November 2021       Issue date ※ 07 December 2021
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