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EMCal/DCal Electronics November 08, 2010

EMCal/DCal Electronics November 08, 2010. Outline: EMCal Installation DCal Preparations Readout Upgrade - (Presentation by Hans). EMCal Installation. Executive summary All readout hardware on SM is complete (at Grenoble)

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EMCal/DCal Electronics November 08, 2010

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  1. EMCal/DCal ElectronicsNovember 08, 2010 Outline: EMCal Installation DCal Preparations Readout Upgrade - (Presentation by Hans)

  2. EMCal Installation • Executive summary • All readout hardware on SM is complete (at Grenoble) • FEE crates, FEE cards, Cooling Manifolds, LED system, LV and HV cables, GTL buses, (RCUs)… • All 6 SMs will be tested at P2 (SXL2) prior to installation • Area has been prepared • All cabling has been pre-installed on CalFrame • “Simply” need to connect SMs up after installation • Main effort will be commissioning • Big task will be DCS work • Should be relatively easy for SMA2 and SMC2 since they are on the same LV service group as SM0 and SM1 EMCal & DCal Electronics, T.Awes

  3. EMCal Installation • SM Testing • SM US#3 and US#5 delivered to B-167 • FEE cards installed • (Modified FEE cards) • LV, HV, T readout, trigger setup • DAQ station • US#5 fully tested with LEDs • No bad channels! (1 weak signal/fiber) • Transported to P2 Nov. 5 for insertion tests • US#3 to be tested with LEDs • This week probably. • Transport to P2 next week • Move DAQ setup next week • EU#3 + US#4 arrive at P2 next week EMCal & DCal Electronics, T.Awes

  4. EMCal Installation • SM Testing @ SXL2 • All SMs will be re-tested at SXL2 with LEDs prior to installation • Why re-test? • Plan to install “DTC” cards on all FEE cards prior to installation • FEE cards of remaining 6 SMs have been modified with installation of pins/sockets needed to mount DTC boards • Requires FEE cards to be removed to install DTC board • DTC readout will be “ready” to use with “simple” cable connection after removing GTL bus and RCUs • DTCs expected early December • TRUs need to be installed and tested • TRUs expected in early December only • Installation of TRUs requires removal of DCS, GTL bus, etc. EMCal & DCal Electronics, T.Awes

  5. EMCal FEE Card Modification • FEE card modification for DTC board • Insert and solder 4 pins and 4 sockets • Completed for 6 SMs to be installed • Plan to modify the FEE boards of 4 SMs already installed also (!) • Some channels suspected of no HV bias to be repaired Insert 4 sockets Insert 4 pins EMCal & DCal Electronics, T.Awes

  6. EMCal FEE DTC Card • DTC board to be mounted on all FEE boards • Passive while using GTL+RCU readout • To enable DTC readout: • Reprogram FEE firmware • 1-2 hrs/SM • Connect cable to GTL bus (as shown) • Needed for FEE card enable and ALTRO clock • Connect RJ45 LVDS cable to SRU module • Free of RCU+DCS system!!! • More later… EMCal & DCal Electronics, T.Awes

  7. EMCal Installation • Concerns? • DTC cards • Mounting of the DTC boards prior to insertion of SMs is not essential, • But it will be most convenient to do this prior to installation in L3 • Delivery expected by early December • Removal of FEE boards from SMA0, SMA1, SMC0, SMC1 for modification, DTC installation, and any necessary repairs will be done as soon as DTC boards are available. • TRUs • After testing in laboratory it still required some effort to debug TRUs in SMs. • It will be most convenient to do this prior to installation in L3 • RCUs: This is the major concern… • We need 2x10 working RCUs to operate EMCal • Currently we have 37 RCUs in possession of EMCal, but only 12 confirmed to be 100% functional. • We will need to make a concerted effort at RCU repair • TPC has said there are no more spare RCUs available (to us) • This is one of the major reasons for the SRU readout upgrade… • None of this will give reason to delay SM installation EMCal & DCal Electronics, T.Awes

  8. EMCal Installation • We want to be able to connect SM to services immediately after insertion of each SM and test to confirm that the SM is fully functional • All services are ready to connect to SM • Minor exception LED LV and trigger cables must be installed • LED system was not finalized until after CalFrame was installed. • Can be installed in December • Hardware • Service group A0-2 and C0-2 LV and HV ready • Need to install a LV module and 2 HV modules for service groups A3-4 and C3-4 (and finish a HV multi-pin connector) • Can be done in December - everything is at CERN • DCS must be upgraded to configure and monitor new SMs • Jiro arrives in December to begin upgrade, Kithsiri also in January • AMORE must be upgraded to provide monitoring histograms of all 10 SMs • Can be started immediately after end of run • Francesco? EMCal & DCal Electronics, T.Awes

  9. EMCal DCS Modifications SMA2 and SMC2 “simply” added to existing panels: HV control T monitoring DCS Monitoring Panel for SM group A0,A1,A2 New Panels and structure needed for SM groups A3,A4 and C3,C4. EMCal & DCal Electronics, T.Awes

  10. EMCal DCS Modifications • Existing DCS control of FEE via scripts executed via ssh • 2 DCS boards per SM, with 10SM -> 20 DCS windows! + BusyBox • Direct communication has been convenient for commissioning • During normal ALICE operation this is done “under the hood” of PVSS • EMCal functionally fully compliant, but technically not compliant as PVSS-DCS communication should be done via DIM server • Jiro and Kirthsiri may work towards this in January EMCal & DCal Electronics, T.Awes

  11. EMCal Commissioning Schedule • December: • Complete remaining hardware installations in P2: LV, HV modules, LED cables • Update DCS to be ready to control additional 6 SMs • Update AMORE to be ready to monitor pedestal and LED data from all 10 SMs and check SMs as they are installed • Find/Fix sufficient RCUs for 10 SMs (starting now) • Complete TRU production • Complete DTC production • Install TRUs and DTCs on SMs and re-test SMs with LEDs in sequence of expected installation • If DTCs available and time allows - Remove FEE cards from installed SMs to make modifications and mount DTCs and fix any bad channels • January: • Evenings(?): Connect each SM to services after installation. Test SM and full SM groups. • Complete removal of FEE cards of installed SMs for repair, modification, DTC installation. • Much etc, etc, etc to get everything functional for collisions. EMCal & DCal Electronics, T.Awes

  12. DCal Preparation Status EMCal & DCal Electronics, T.Awes

  13. DCal Installation C-side SMC9 SMC11 SMC10 A-side SMA9 SMA11 SMA10 • DCal is part of EMCal, but with shortened SMs • In DCS, DAQ and Trigger there will be no DCal distinction except by SM number • Sectors follow EMCal sector Numbering • EMCal Sectors 0-4 (5=1/3 SM, 6,7,8 empty) 11 0 12 1 13 2 14 3 PHOS/EMCal do not follow ALICE Sector numbering EMCal & DCal Electronics, T.Awes

  14. DCal SM Readout • DCal same as EMCal, but shortened • Fewer cables, fibers, FEE cards • 3 Shielded Ribbon Cables per Strip Module (48 total) • APD bias, preamplifier LV, and signal • 8 Temperature Sensors per SM • 2 sensors every 4th strip module • LED monitoring • One 3mm Fiber (1 LED) per Strip • 16 LEDs per SM SM#2 @ Grenoble EMCal & DCal Electronics, T.Awes

  15. DCal Super Modules • DCal: 16 Strip Modules • Requires: • 24+1 FEE cards • 2 TRUs • 2 FEE Crates • 4 GTL Bus • 2 RCU+DCS+SIU • 1 LED Driver (doublet?) • 1 16xPhotodiode Reference • EMCal: 24 Strip Modules • Requires: • 36+1 FEE cards • 3 TRUs • 2 FEE Crates • 4 GTL Bus • 2 RCU+DCS+SIU • 1 LED Driver triplet • 1 24xPhotodiode Reference EMCal & DCal Electronics, T.Awes

  16. DCal FEE Crate - Option I • Use two EMCal FEE crates but sparsely filled with FEE+TRU boards. • Each TRU connected to 12 FEE cards = 1 1/2 “rows” of DCal • Option I: Keep FEE cards and TRUs in same location as for EMCal • ++ Connections on IPCB same -> cables same as EMCal • -- FEE separated -> Longer FastOr cables 2 FEE Crates of SM FEE TRU Empty EMCal & DCal Electronics, T.Awes

  17. DCal FEE Crate - Option II • Option II. Move FEE cards closer to TRUs • ++ RCU1 GTL branch B not needed • ++ FastOR cables shorter • -- Different IPCB connector locations and FEE locations. 2 FEE Crates of SM FEE TRU Empty EMCal & DCal Electronics, T.Awes

  18. DCal Electronics Status • All DCal electronics orders placed via ALICE-DCal CERN account (a la ALICE-EMCAL account) set up April 14. • Highest priority was components for Strip Module assembly • Strip Module components - all delivered and shipped to Catania, Nantes, and WSU • APDs • 6000 for US EMCal @24.9euros/pc (4608 needed for 4 EMCal SM) • 1392 available for US DCal (delivered@Houston) • Tsukuba ordered 1200 PE APDs - all delivered @ Catania • 2500 PE APDs ordered @29.7euros/pc and (all?) delivered to Houston • With EMCal PE APD order, estimated 484 spare APDs • ~500 APDs with epoxy problems (~1/2 recoverable) • Therefore 300 additional PE APDs ordered @29.7euros/pc (spares) • 7000 Preamplifiers - all delivered • Total cost ~1.9 CHF/pc (cf. ~9 CHF/pc for original CSPs; 5.5CHF CSP ) • 3800 Molex cables (+EMCal extras) - all delivered • @2.25euros/pc (cf @1.6euros/pc) • T-cards - all delivered (30 spares still to be delivered) • Total cost ~45 CHF/pc (cf. ~60 CHF/pc for original T-cards) EMCal & DCal Electronics, T.Awes

  19. Status: Strip Components • PE APD (4608 each) • Same as used for last part of EMCal • 6000 for US EMCal @24.9euros/pc (4608 needed for 4 EMCal SM) • > 1392 available for US DCal (delivered@Houston) • 1200 ordered by Tsukuba @32.5euros/pc (already delivered@CERN) • 2500 additional ordered for DCal (to be delivered@Houston) @29.7euros/pc • Total = 5092 ==> 484 spares (399 missing?) • Preamplifier (4608 each; modified) • Modified to use surface mount molex connector (and correct C7) • PCBs ordered and delivered • All components ordered and delivered • Production of 7000 CSPs may start this week • Total cost ~1.9 CHF/pc (cf. ~9 CHF/pc for original CSPs; 5.5CHF CSP ) • Molex cables (4608 each) • 3800 ordered @2.25euros/pc (cf @1.6euros/pc) • Transition Card (288 each; unchanged) • PCBs ordered and delivered • All components ordered • Order for production of 350 T-cards placed • As well as 10 12-channel T-cards for LED reference system • Total cost ~45 CHF/pc (cf. ~60 CHF/pc for original T-cards) EMCal & DCal Electronics, T.Awes

  20. Status: Electronics • Signal cables (288 each; unchanged strips 0-35) • To be ordered by Grenoble • Intermediate PC Boards (6 (x4 PCBs) each; unchanged) • Produced and delivered to Grenoble (@~6000CHF) • FEE Crate Mechanics (6 (x2) FEE crates; unchanged) • Rails & guides ordered and delivered (commercial Rittal) @1940CHF • Machined crate pieces produced at UT Austin and delivered to Grenoble • FEE Crate cover plates ordered and delivered @749CHF • Copper Cooling plates • Material and Machining - done @9238CHF • Welding tubes on plates - done @ 6386 CHF • Manifold assembly & welding - done @ CERN @1770 CHF • Cleaning underway @ CERN @~1440CHF • LED Drivers (6 (x3 PCBs) each; unchanged) • PCBs ordered @911CHF • Production underway, delivery in next weeks • LED Driver Box produced at UT Austin • Fiber connectors being modified at WSU EMCal & DCal Electronics, T.Awes

  21. Status: Electronics • LED Reference (6 each; unchanged) • 144 Photodiodes delivered @ 10.3CHF/pc • Preamplifiers and12-channel T-cards (included above) • Fiber connectors being prepared at WSU • LED Reference support produced at UT Austin • Aluminum sheet metal pieces being produced in Grenoble • LED Control Unit (LCU) (0 each; unchanged) • Use same unit as EMCal (+3 spares) • Front End Electronics Card (150 each; unchanged) • Production version v1.1f • We have ~80 extras from EMCal + 50 (JCal production), but only about 30 currently confirmed 100% working • Needs a dedicated repair effort • Therefore plan to produce 150 new FEE boards • 150 PCBs ordered to be delivered this week (@~110CHF/pc) • Some components ordered • Requested 600 ALTROs from CERN • Problem: GTL chips no longer in production - Need 1050; 300 from PHOS • Phillips GTLP chips might be alternative - requires testing • Only 150 needed for use with Readout Upgrade EMCal & DCal Electronics, T.Awes

  22. Status: Electronics • Trigger Region Unit (12 each; unchanged) • Jyvaskyla contribution (@~3600CHF) • Nothing ordered • Summary Trigger Unit - STU (1 each; Grenoble) • Final production version • Busy Box • DCal and EMCal use same BusyBox • DCal is a part of EMCal detector system • RCU: Readout Control Unit (6x2 each) • ALICE standard; “off the shelf”; • If you can get them; Many “bad” RCUs; ~No spares; Insufficient stock for DCal • Will require a new RCU production for DCal • TPC group no longer responsible for RCU production • RCUs require GTL chips - no longer in production • Not needed with Readout Upgrade • GTL bus (6 x2 (x4 types); unchanged) • Components ready, but order has not been placed • Not needed with Readout Upgrade EMCal & DCal Electronics, T.Awes

  23. Status: Electronics • DCS: Detector Control System card (6x2 each) • ALICE standard; In hand • Not needed with Readout Upgrade • DDL+DataReadOutReceiverCards (6x2 each) • ALICE standard; provided by DAQ group • Not needed for Readout Upgrade • Need Gigabit Ethernet version of DRORC instead • Local Data Collectors (PCs - 6 each) • ALICE standard; “Provided” by DAQ group • Detector Control System (HV and LV control, FEE setup, Temperature readout, ethernet) • Incorporated into EMCal DCS • Possibly need additional DCS Worker Node • High Level Trigger • HRORCs + PCs • Modification of HRORCs for Readout Upgrade? EMCal & DCal Electronics, T.Awes

  24. Trigger Considerations • EMCal TRU to be used unchanged. • Jyvaskyla agrees to provide DCal TRUs • EMCal STU to be used unchanged (probably), separate STU for DCal. • Case 1) PHOS TRU input to STU, DCal STU provides L1 shower and Jet triggers from DCal+PHOS • Requires PHOS TRU to send FastOR data to STU • PHOS TRUs cannot run as full 40MHz • PHOS TRU upgrade planned for 2011-2012 shutdown • Requires 36 STU inputs for 3 sectors of DCal (12 TRUs) + PHOS (24 TRUs) • Okay since STU has 40 inputs • Would require modified DCal TRU algorithm • Case 2) DCal input only to DCal STU • STU provides L1 shower (and L0 OR) only to CTP • EMCal and DCal triggers OR’d at CTP EMCal & DCal Electronics, T.Awes

  25. DCal Services Rack A13 DCal • DCal rack space defined • LV rack A13 (new) • HV rack (share with EMCal in Y10 CR4) • DAQ LDC rack (3 LDCs) • HLT rack • HV crate (share with EMCal) • 2 ISEG modules • Delivered @15745CHF • 2 LV multi-channel supplies in rack A13 • Wiener (0-8V, and 0-16V) • Delivered @27361 CHF EMCal & DCal Electronics, T.Awes

  26. DCal Services Primary LV (to 3 SM) • Integration of DCal Electrical “Services” within ALICE to SuperModule - Cables & Panels: • LV cables + distribution panels (ordered) • HV cables + distribution(done) • Fiber optic + patch panels for trigger and readout (DAQ group) • Temperature sensor MotherBoards (requested) + cables to SM • Ethernet + patch panel (done) • Trigger cables • Single cable tray will be sufficient • Located below SMs on support • Layout by Stefane (done) • DCal cables on support permanent Secondary LV (to SM) EMCal & DCal Electronics, T.Awes

  27. DCal Services - Cables • All DCal Cables/Patch Panels functionally specified (since January) Spreadsheet from Didier Gabriele, based on spreadsheet from TA for entry to ALICE Cable DB EMCal & DCal Electronics, T.Awes

  28. DCal Services - Cables • DCal SM services labeled as additional EMCal SMs. • Cable/fiber routing essentially finalized (Stephane Maridor) and ready to fix lengths, then ready to commit to ALICE DB and produce cables. Spreadsheet from Didier Gabriele, based on spreadsheet from TA for entry to ALICE Cable DB EMCal & DCal Electronics, T.Awes

  29. EMCal/Dcal Readout Upgrade EMCal & DCal Electronics, T.Awes

  30. EMCal/Dcal Readout Upgrade • Concerns with the existing EMCal GTL Bus based Readout • GTL chips no longer in production • Likely insufficient supply for DCal FEE production • Limitation of Serial Readout • Single FEE GTL problems can disable full GTL Bus (1/4SM) or RCU (1/2SM) • Readout time 10x FEE readout • Minimum deadtime for p+p with Zero Suppression on FEE = 250 s • Minimum deadtime for Pb+Pb likely to be >625 s (1.6kHz max.) • EMCal trigger • EMCal L0 Trigger must be inhibited (in TRU) during FEE readout due to noise induced on FastOR lines • RCU support • Production and RCUs no longer supported by TPC • Insufficient RCU supply -> New RCU production will be required for DCal • Sufficient GTL chips for DCal RCU production? • Firmware not under EMCal control • Requires TPC support for EMCal/PHOS versions • Complexity • Requires 4 GTL boards, 2 RCUs, 2 DCS, 2DDL, + associated cables per SM EMCal & DCal Electronics, T.Awes

  31. FEE Upgrade Design 2 x • Replace 2 RCU+DCS+SIU + 4 GTL with single SRU • Replace serial readout of 10 cards/GTL bus with parallel readout of all FEE/TRU boards • Minimum readout speed ~30s, maximum readout speed (HI) ~100s • FEE-SRU communication via LVDS serial lines a la TRU-STU • LCU was effectively a prototype SRU to test all functionality • SRU-LDC communication via gigabit ethernet • Planned ALICE upgrade path • Compatible with existing DDL readout fibers • New FEE (and FEE upgrade daughter card) must add LVDS communication channel • TRU already has this capability EMCal & DCal Electronics, T.Awes

  32. EMCal/DCal Readout Upgrade SRS project lead by Hans EMCal & DCal Electronics, T.Awes

  33. EMCal/DCal SRS Upgrade EMCal LED Control Unit EMCal & DCal Electronics, T.Awes

  34. EMCal/DCal SRS Upgrade EMCal & DCal Electronics, T.Awes

  35. EMCal/DCal SRS Upgrade EMCal & DCal Electronics, T.Awes

  36. EMCal/DCal SRS Upgrade EMCal & DCal Electronics, T.Awes

  37. EMCal/DCal SRS Upgrade For EMCal: 1 clock line 2 data lines 1 trigger line @80 MHz EMCal & DCal Electronics, T.Awes

  38. EMCal/DCal SRS Upgrade -> Est. rate limit ~300kHz p+p; 5kHz Pb+Pb EMCal & DCal Electronics, T.Awes

  39. EMCal/DCal SRS Upgrade == EMCal LCU module EMCal & DCal Electronics, T.Awes

  40. EMCal/DCal SRS Upgrade • Plan & progress: • Upgrade existing FEE boards with “small cheap” daughter card (DTC) to allow all FEE & TRUs to be readout with SRUs rather than RCUs. • Prototype DTC board was made in March 2010 • Tested with EMCal LCU as SRU emulator to demonstrate concept and necessary performance of DTC-SRU link • First pre-production DTC boards (shown) installed on FEE and tested with LCU • DTC PCBs expected next week, all components@CERN to start full DTC production immediately - expect delivery end of November. SRU EMCal & DCal Electronics, T.Awes

  41. EMCal/DCal SRS Upgrade • Plan & progress: • SRU pre-production underway • 11 SRU PCBs produced in China (Wuhan) • Full SRU order has been placed (need 16 SRUs EMCal+DCal) • All components for 8 SRUs at CERN • Two SRUs will be produced and tested immediately (perhaps next week) • If okay production of 8 SRUs will be completed (end of November) • If layout problem, then modify PCB layout for new production • Order PCBs, components for production of remaining SRUs (ready early 2011) SRU EMCal & DCal Electronics, T.Awes

  42. EMCal/DCal SRS Upgrade • Plan & progress: • DTC-SRU Firmware development (&TRU-SRU) is a major task • Fan Zhang (Wuhan) @ CERN for 1 year to work on this project (as part of SRS for RD51) • FEE and TRU Board Controller firmware must be upgraded to use new protocol for Data, Control, and Trigger via DTC board • Fan is also author of EMCal FEE board controller firmware • TRU BC firmware will need to be upgraded by Jiri • Plan for shutdown (ambitious!): • All DTCs to be installed on FEE boards by end of 2010-11 installation • Switch one EMCal Group (e.g. SMC3& SMC4) over to SRS readout by end of 2010-11 installation • Insanely ambitious! • DTC(TRU)-SRS system must be fully functional • Firmware development is already underway EMCal & DCal Electronics, T.Awes

  43. EMCal/DCal Readout Upgrade • Plan: • EMCal to switch from RCU to SRS readout in groups of “quadrants” (LV groups) • This can be done in about 2 days per group • Can be done throughout 2011 run during Machine Stop periods • EMCal operated with mixed readout methods • Perhaps start 2011 run with one group in SRS readout mode • Requires: • Removal of GTL+RCU+DCS • Installation of SRS module: mounting, cabling • Connection of DTC boards to GTL bus and SRS, and TRU to SRS • Reprogramming of FEE and TRU Board Controllers • Switch from ALICE DDL readout to Gigabit ethernet @ LDC • Switchover of FEE&TRU control from DCS board to Gigabit ethernet EMCal & DCal Electronics, T.Awes

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