Author: Wallace, T.A.
Paper Title Page
TUPDP121 Conceptual Design of the Matter in Extreme Conditions Upgrade (MEC-U) Rep-Rated Laser Control System 865
 
  • B.T. Fishler, F. Batysta, J. Galbraith, V.K. Gopalan, J. Jimenez, L.S. Kiani, E.S. Koh, J.F. McCarrick, A.K. Patel, R.E. Plummer, B. Reagan, E. Sistrunk, T.M. Spinka, K. Terzi, K.M. Velas
    LLNL, Livermore, USA
  • M.Y. Cabral, T.A. Wallace, J. Yin
    SLAC, Menlo Park, California, USA
 
  Funding: This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
The Lawrence Liv­er­more Na­tional Lab­o­ra­tory (LLNL) is de­liv­er­ing the Dual-mode En­er­getic Laser for Plasma and High In­ten­sity Sci­ence (DEL­PHI) sys­tem to SLAC as part of the MEC-U pro­ject to cre­ate an un­prece­dented plat­form for high en­ergy den­sity ex­per­i­ments. The DEL­PHI con­trol sys­tem is re­quired to de­liver short and/or long pulses at a 10 Hz fir­ing rate with femto/pico-sec­ond ac­cu­racy sus­tained over four­teen 12-hour op­er­a­tor shifts to a com­mon shared tar­get cham­ber. The MEC-U sys­tem re­quires the in­te­gra­tion of the con­trol sys­tem with SLAC pro­vided con­trols re­lated to per­son­nel safety, ma­chine safety, pre­ci­sion tim­ing, data analy­sis and vi­su­al­iza­tion, amongst oth­ers. To meet these needs along with the sys­tem’s re­li­a­bil­ity, avail­abil­ity, and main­tain­abil­ity re­quire­ments, LLNL is de­liv­er­ing an EPICS based con­trol sys­tem lever­ag­ing proven SLAC tech­nol­ogy. This talk pre­sents the con­cep­tual de­sign of the DEL­PHI con­trol sys­tem and the meth­ods planned to en­sure its suc­cess­ful com­mis­sion­ing and de­liv­ery to SLAC.
 
poster icon Poster TUPDP121 [1.610 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP121  
About • Received ※ 02 October 2023 — Revised ※ 09 October 2023 — Accepted ※ 04 December 2023 — Issued ※ 17 December 2023
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TUPDP128
The Matter in Extreme Conditions Upgrade Facility Control System Architecture  
 
  • T.A. Wallace
    SLAC, Menlo Park, California, USA
 
  Funding: This work is supported by Department of Energy contract DE-AC02-76SF00515.
The Mat­ter in Ex­treme Con­di­tions Up­grade (MECU) pro­ject is a DOE 403.13b pro­ject des­ig­nated to be built on the SLAC Na­tional Ac­cel­er­a­tor Lab­o­ra­tory cam­pus within this decade. The fa­cil­ity will de­liver the Linac Co­her­ent Light Source (LCLS) XFEL in com­bi­na­tion with a high en­ergy long pulse (HE-LP) laser sys­tem and a rep-rated laser built by two other DOE labs, the Laser Lab for En­er­get­ics (LLE) and Lawrence Liv­er­more Na­tional Lab­o­ra­tory (LLNL) re­spec­tively to ex­per­i­ment tar­get cham­bers. The con­trol sys­tem de­sign for this fa­cil­ity will uti­lize EPICS through­out the SLAC, LLE and LLNL major sub­sys­tems, and to the ex­tent pos­si­ble a com­mon hard­ware and soft­ware suite. The ef­fort is a major un­der­tak­ing in con­trol sys­tem de­sign and build via col­lab­o­ra­tion be­tween the three part­ner labs of the pro­ject. This talk will re­view the con­trol sys­tem ar­chi­tec­ture con­cept for MECU, from in­dus­trial con­trols to high-level au­toma­tion within the con­text of the con­cept of op­er­a­tions, as well as sta­tus of the pro­ject.
 
poster icon Poster TUPDP128 [1.989 MB]  
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TUPDP129 The LCLS-II Experiment Controls Preemptive Machine Protection System 886
 
  • T.A. Wallace
    SLAC, Menlo Park, California, USA
 
  Funding: This work is supported by Department of Energy contract DE-AC02-76SF00515.
The LCLS-II Pre­emp­tive Ma­chine Pro­tec­tion Sys­tem (PMPS) safe­guards di­ag­nos­tics, op­tics, beam-shap­ing com­po­nents and ex­per­i­ment ap­pa­ra­tus from dam­age by ex­cess XFEL av­er­age power and sin­gle-shots. The dy­namic na­ture of these sys­tems re­quires a some­what novel ap­proach to a ma­chine pro­tec­tion sys­tem de­sign, re­ly­ing more heav­ily on pre­emp­tive in­ter­locks and au­toma­tion to avoid mis­matches be­tween de­vice states and beam pa­ra­me­ters. This is in con­trast to re­ac­tive ma­chine pro­tec­tion sys­tems. Safe beam pa­ra­me­ter sets are de­ter­mined from the com­bi­na­tion of all in­te­grated de­vices using a hi­er­ar­chi­cal arrange­ment and all state changes are held until beam con­di­tions are as­sured to be safe. This ma­chine pro­tec­tion sys­tem de­sign uti­lizes the Beck­hoff in­dus­trial con­trols plat­form and Ether­CAT, and is woven into the LCLS sub­sys­tem con­trollers as a code li­brary and stan­dard­ized hard­ware in­ter­face.
 
poster icon Poster TUPDP129 [1.146 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP129  
About • Received ※ 25 October 2023 — Revised ※ 01 November 2023 — Accepted ※ 30 November 2023 — Issued ※ 16 December 2023
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WE1BCO04 The LCLS-II Experiment System Vacuum Controls Architecture 962
 
  • M. Ghaly, T.A. Wallace
    SLAC, Menlo Park, California, USA
 
  Funding: This work is supported by Department of Energy contract DE-AC02-76SF00515.
The LCLS-II Ex­per­i­ment Sys­tem Vac­uum Con­trols Ar­chi­tec­ture is a col­lec­tion of vac­uum sys­tem de­sign tem­plates, in­ter­lock log­ics, sup­ported com­po­nents (eg. gauges, pumps, valves), in­ter­face I/O, and as­so­ci­ated soft­ware li­braries which im­ple­ment a base­line func­tion­al­ity and sim­u­la­tion. The ar­chi­tec­ture also in­cludes a com­ple­ment of en­gi­neer­ing and de­ploy­ment tools in­clud­ing cable test boxes or hard­ware sim­u­la­tors, as well as some au­to­matic con­fig­u­ra­tion tools. Vac­uum con­trols at LCLS spans from rough vac­uum in com­plex pump­ing man­i­folds, pro­tec­tion of highly-sen­si­tive x-ray op­tics using fast shut­ters, main­te­nance of ul­tra-high vac­uum in ex­per­i­men­tal sam­ple de­liv­ery se­tups, and be­yond. Often, the vac­uum stan­dards for LCLS sys­tems ex­ceeds what most ven­dors are ex­pe­ri­enced with. The sys­tem must main­tain high-avail­abil­ity, while also re­main­ing flex­i­ble and han­dling on­go­ing mod­i­fi­ca­tions. This paper will re­view the com­pre­hen­sive ar­chi­tec­ture, the re­quire­ments of the LCLS sys­tems, and in­tro­duce how to use it for new vac­uum sys­tem de­signs. The ar­chi­tec­ture is meant to in­flu­ence all phases of a vac­uum sys­tem life­cy­cle, and ide­ally could be­come a shared pro­ject for in­stal­la­tions be­yond LCLS-II.
 
slides icon Slides WE1BCO04 [3.154 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-WE1BCO04  
About • Received ※ 31 October 2023 — Revised ※ 20 November 2023 — Accepted ※ 08 December 2023 — Issued ※ 12 December 2023
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TH2BCO03 The LCLS-II Experiment Control System 1172
 
  • T.A. Wallace, D.L. Flath, M. Ghaly, T.K. Johnson, K.R. Lauer, Z.L. Lentz, R.S. Tang-Kong, J. Yin
    SLAC, Menlo Park, California, USA
 
  Funding: Work supported by the U.S. Department of Energy under contract number DE-AC02-76SF00515.
The Linac Co­her­ent Light Source (LCLS) has been un­der­go­ing up­grades for sev­eral years now through at least two sep­a­rate major pro­jects: LCLS-II a DOE 403.13b pro­ject re­spon­si­ble for up­grad­ing the ac­cel­er­a­tor, un­du­la­tors and some front-end beam de­liv­ery sys­tems, and the LCLS-II Strate­gic Ini­tia­tive or L2SI pro­ject which as­sumed re­spon­si­bil­ity for up­grad­ing the ex­per­i­ment end­sta­tions to fully uti­lize the new XFEL ma­chine ca­pa­bil­i­ties to be de­liv­ered by LCLS-II. Both pro­jects in­cluded scope to de­sign, in­stall and com­mis­sion a con­trol sys­tem pre­pared to han­dle the risks as­so­ci­ated with the ten­fold in­crease in beam power we will even­tu­ally achieve. This paper pro­vides an overview of the new con­trol sys­tem ar­chi­tec­ture from the LCLS-II and L2SI pro­jects and sta­tus of its com­mis­sion­ing.
 
slides icon Slides TH2BCO03 [2.700 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TH2BCO03  
About • Received ※ 04 November 2023 — Accepted ※ 11 December 2023 — Issued ※ 16 December 2023  
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