Author: Lee, J.H.
Paper Title Page
TUAPL01 MicroTCA Generic Data Acquisition Systems at ESS 118
 
  • S. Farina, J.H. Lee, J.P.S. Martins, D.P. Piso
    ESS, Lund, Sweden
  
  The Eu­ro­pean Spal­la­tion Source (ESS) is a Part­ner­ship of 17 Eu­ro­pean Na­tions com­mit­ted to the goal of col­lec­tively build­ing and op­er­at­ing the world's lead­ing fa­cil­ity for re­search by use of neu­trons by the sec­ond quar­ter of the 21st Cen­tury. The strive for in­no­va­tion and the chal­lenges that need to be over­come in order to achieve the re­quested per­for­mances pushed to­wards the adop­tion of one of the newest stan­dards avail­able on the mar­ket. ESS has de­cided to use Mi­croTCA as stan­dard plat­form for the sys­tems that re­quire high data through­put and high up­time. The im­pli­ca­tions of this choice on the ar­chi­tec­ture of the sys­tems will be de­scribed with em­pha­sis on the data ac­qui­si­tion elec­tron­ics.  
video icon Talk as video stream: https://youtu.be/warsqk8bwJs  
slides icon Slides TUAPL01 [1.663 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUAPL01  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUPHA088 Timing System at ESS 618
 
  • J. Cereijo García, T. Korhonen, J.H. Lee
    ESS, Lund, Sweden
  
  The Eu­ro­pean Spal­la­tion Source (ESS) tim­ing sys­tem is based on the hard­ware de­vel­oped by Mi­cro-Re­search Fin­land (MRF). The main pur­poses of the tim­ing sys­tem are: gen­er­a­tion and dis­tri­b­u­tion of syn­chro­nous clock sig­nals and trig­ger events to the fa­cil­ity, pro­vid­ing a time base so that data from dif­fer­ent sys­tems can be time-cor­re­lated and syn­chro­nous trans­mis­sion of beam-re­lated data for for dif­fer­ent sub­sys­tems of the fa­cil­ity. The tim­ing sys­tem has a tree topol­ogy: one Event Gen­er­a­tor (EVG) sends the events, clocks and data to an array of Event Re­ceivers (EVRs) through an op­ti­cal dis­tri­b­u­tion layer (fan-out mod­ules). The event clock fre­quency for ESS will be 88.0525 MHz, di­vided down from the bunch fre­quency of 352.21 MHz. An in­te­ger num­ber of ticks of this clock will de­fine the beam macro pulse full length, around 2.86 ms, with a rep­e­ti­tion rate of 14 Hz. An ac­tive delay com­pen­sa­tion mech­a­nism will pro­vide sta­bil­ity against long-term drifts. A nov­elty of ESS com­pared to other fa­cil­i­ties is the use of the fea­tures pro­vided by EVRs in uTCA form fac­tor, such as trig­ger and clock dis­tri­b­u­tion over the back­plane. These EVRs are al­ready being de­ployed in some sys­tems and test stands.  
poster icon Poster TUPHA088 [3.033 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA088  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPHA067 EtherCAT based DAQ system at ESS 1536
 
  • J. Etxeberria, J.H. Lee
    ESS, Lund, Sweden
  
  The Eu­ro­pean Spal­la­tion Source (ESS) is a multi-dis­ci­pli­nary re­search fa­cil­ity based on what will be the world's most pow­er­ful-pulsed neu­tron source. The In­te­grated Con­trol Sys­tem Di­vi­sion (ICS) is re­spon­si­ble of defin­ing and pro­vid­ing con­trol sys­tems for the ESS fa­cil­ity. This con­trol sys­tem will be based on the EPICS and it must be high per­for­mance, cost-ef­fi­cient, safe, re­li­able and eas­ily main­tain­able. At the same time there is a strong need for stan­dard­iza­tion. To ful­fill these re­quire­ments ICS has cho­sen dif­fer­ent hard­ware plat­forms, like Mi­croTCA, PLC, Ether­CAT, etc. Ether­CAT, a Eth­er­net-based real-time field­bus will be an­a­lyzed, and dif­fer­ent ques­tions will be an­swered: -Why has Ether­CAT been cho­sen? -In which cases is it de­ployed? -How is it in­te­grated into EPICS? -What is the in­stal­la­tion process? Along with data ac­qui­si­tion pur­poses, the ESS Mo­tion Con­trol and Au­toma­tion Group de­cided to use Ether­CAT hard­ware to de­velop an Open Source Ether­CAT Mas­ter Mo­tion Con­troller, for the con­trol of all the ac­tu­a­tors of the ac­cel­er­a­tor within the ESS pro­ject. Hence, an overview of the open Source Mo­tion Con­troller and its in­te­gra­tion in EPICS will be also pre­sented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA067  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPHA133 MicroTCA.4 Integration at ESS: From the Front-End Electronics to the EPICS OPI 1692
 
  • J.P.S. Martins, S. Farina, J.H. Lee, D.P. Piso
    ESS, Lund, Sweden
  
  The Eu­ro­pean Spal­la­tion Source (ESS) is a col­lab­o­ra­tion of 17 Eu­ro­pean coun­tries that is build­ing a lead­ing neu­tron re­search cen­ter in Lund, Swe­den. The ESS fa­cil­ity will have the most pow­er­ful neu­tron source in the world, pro­vid­ing 5 MW of beam power. The In­te­grated Con­trol Sys­tems Di­vi­sion (ICS) is re­spon­si­ble for all the con­trol sys­tems for the whole fa­cil­ity. For the ac­cel­er­a­tor con­trol sys­tem, ICS will pro­vide dif­fer­ent hard­ware plat­forms ac­cord­ing to the re­quire­ments of each spe­cific sys­tem. For high per­for­mance sys­tems, de­mand­ing high data through­put, the hard­ware plat­form is the Mi­croTCA.4 stan­dard. This work pre­sents the soft­ware stack that makes the in­te­gra­tion of a high-end Mi­croTCA.4 hard­ware into the ESS Con­trol Sys­tem, with the im­ple­men­ta­tion de­tails of the FPGA firmware frame­work, ker­nel and user­space dri­vers, EPICS de­vice sup­port and fi­nally the EPICS IOC that con­trols the Mi­croTCA.4 boards.  
poster icon Poster THPHA133 [2.193 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA133  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)