Author: Shankar, M.V.
Paper Title Page
MODPL06
 Recent and Future Upgrades to the Control Systems of LCLS and LCLS-II Scientific Instruments  
 
  • D.L. Flath, M.C. Browne, M.L. Gibbs, K. Gumerlock, B.L. Hill, A. Perazzo, M.V. Shankar, T.A. Wallace, D.H. Zhang
    SLAC, Menlo Park, California, USA
  
  Funding: LCLS is an Office of Science User Facility operated for the US Department of Energy Office of Science by Stanford University.
The Linac Co­her­ent Light Source (LCLS), a US De­part­ment of En­ergy Of­fice of Sci­ence user fa­cil­ity, achieved first light in 2009; a total of seven sci­en­tific in­stru­ments were com­mis­sioned through 2015. The EPICS-based con­trol sys­tem, in terms of both hard­ware and soft­ware has evolved sig­nif­i­cantly over eight years of op­er­a­tion as the rate of ex­per­i­ment de­liv­ery has in­creased through means such as pho­ton-beam mul­ti­plex­ing. A de­scrip­tion of the up­grades and im­prove­ments to hard­ware, soft­ware, tools, and pro­ce­dures will be pre­sented. Ad­di­tional dis­cus­sion points will focus on: (1) the pos­i­tive ef­fect of up­grades re­gard­ing re­duc­tion of staffing lev­els and re­quired skill-level re­quired to sup­port op­er­a­tions; (2) en­abling highly skilled staff to focus on fur­ther im­prove­ments; and (3) cur­rent and fu­ture up­grades re­quired to sup­port the LCLS-II which will fur­ther ex­pand ex­per­i­ment out­put when it achieves first light in 2020. LCLS-II top­ics in­clude re­quire­ments for au­toma­tion of rou­tine tasks such as x-ray and op­ti­cal-laser beam align­ment, and fo­cus­ing as well as im­prove­ments to user-in­ter­faces and user-ex­pe­ri­ence which will allow users and non-ex­pert staff to ex­e­cute ex­per­i­ments. 		 
video icon Talk as video stream: https://youtu.be/9fOoEUmvBFE  
slides icon Slides MODPL06 [1.291 MB]  
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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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