Author: Zelazny, S.
Paper Title Page
TUMPL04 LCLS-II Timing Pattern Generator Configuration GUIs 307
 
  • C. Bianchini, J. Browne, K.H. Kim, P. Krejcik, M. Weaver, S. Zelazny
    SLAC, Menlo Park, California, USA
 
  The LINAC Coherent Light Source II (LCLS-II) is an upgrade of the SLAC National Accelerator Laboratory LCLS facility to a superconducting LINAC with multiple destinations at different power levels. The challenge in delivering timing to a superconducting LINAC is dictated by the stability requirements for the beam power and the 1MHz rate. A timing generator will produce patterns instead of events because of the large number of event codes required. The poster explains how the stability requirements are addressed by the design of two Graphical User Interfaces (GUI). The Allow Table GUI filters the timing pattern requests respecting the Machine Protection System (MPS) defined Power Class and the electron beam dump capacities. The Timing Pattern Generator (TPG) programs Sequence Engines to deliver the beam rate configuration requested by the user. The low level program, The TPG generates the patterns, which contains the timing information propagated to the Timing Pattern Receiver (TPR). Both are implemented with an FPGA solution and configured by EPICS. The poster shows an overall design of the high-level software solutions that meet the physics requirements for LCLS-II timing.  
slides icon Slides TUMPL04 [1.030 MB]  
poster icon Poster TUMPL04 [0.883 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUMPL04  
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THPHA022 Roadmap for SLAC Epics-Based Software Toolkit for the LCLS-I/II Complex 1389
 
  • D. Rogind, D.L. Flath, M.L. Gibbs, B.L. Hill, T.J. Maxwell, A. Perazzo, M.V. Shankar, G.R. White, E. Williams, S. Zelazny
    SLAC, Menlo Park, California, USA
 
  With the advent of LCLS-II, SLAC must effectively and collectively plan for operation of its premiere scientific production facility. LCLS-II presents unique new challenges for SLAC, with its electron beam rate of up to 1MHz, complex bunch patterns, and multiple beam destinations. These machine advancements, along with long-term goals for automated tuning, model dependent and independent analysis, and machine learning provide strong motivation to enhance the SLAC software toolkit based on augmenting EPICS V3 to take full advantage of EPICS V4 - which supports structured data and facilitates a language-agnostic middle-ware service layer. The software platform upgrade path in support of controls, online physics and experimental facilities software for the LCLS-I/II complex is described.  
poster icon Poster THPHA022 [1.732 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA022  
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