Author: Hamadyk, P.
Paper Title Page
TUPIK115 Control System Developments for the Diamond Light Source DDBA Upgrade 1996
 
  • W.A.H. Rogers, M.G. Abbott, K.A.R. Baker, N.W. Battam, M.J. Furseman, I.J. Gillingham, P. Hamadyk, M.T. Heron, D.G. Hickin, S.C. Lay, I.P.S. Martin, A.J. Rose
    DLS, Oxfordshire, United Kingdom
  
  Upgrading one Double Bend Achromat cell to a Double Double Bend Achromat (DDBA) cell in the Diamond Light Source storage ring* necessitated a broad range of changes to the overall control system. These changes covered developments to the interface layer of the controls system to incorporate changes to the underlying instrumentation, associated development of user interface, changes to real-time feedback and feed-forward processes and to the online accelerator model. Given the pressures to minimise the shutdown length, the control system developments were optimised for time effective installation and commissioning. This paper outlines the control system developments for DDBA, the management process and lessons learnt from this process.
* R.P. Walker et al., The Double-Double Bend Achromat (DDBA) Lattice Modification for the Diamond Storage Ring, Proc. IPAC 2014, MOPRO103, (2014) 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK115  
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THPAB152 Digital Low Level RF Systems for Diamond Light Source 4089
 
  • P. Gu, C. Christou, P. Hamadyk, D. Spink, I.S. Uzun
    DLS, Oxfordshire, United Kingdom
  • E. Morales, F. Pérez, A. Salom
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  
  Analogue low level RF (LLRF) systems have been used to date for both Diamond storage ring and booster RF cavities. They have been in operation for nearly ten years without a major problem. However, digital LLRF can offer new desirable functionalities such as fast data logging, 'probe blip' blockage and automation of routine tasks. Better performance is also envisaged with up to date hardware. A digital LLRF system has been developed with Alba Synchrotron as a common platform for the storage ring and booster, including superconducting and normal conducting RF cavities. The new digital LLRF is based on Virtex6 FPGA and fast ADCs and DACs. One system has been built and verified in the Diamond booster with beam. The design will be implemented for all other Diamond RF cavities.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPAB152  
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