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

2. November 8, 2010EMCal & DCal Electronics, T.Awes 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

3. November 8, 2010EMCal & 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

4. November 8, 2010EMCal & 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.

5. November 8, 2010EMCal & 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 pins Insert 4 sockets

6. November 8, 2010EMCal & 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…

7. November 8, 2010EMCal & 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

8. November 8, 2010EMCal & 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?

9. November 8, 2010EMCal & 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.

10. November 8, 2010EMCal & 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

11. November 8, 2010EMCal & 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.

12. November 8, 2010EMCal & DCal Electronics, T.Awes 12 DCal Preparation Status

13. November 8, 2010EMCal & DCal Electronics, T.Awes 13 SMA9 SMA10 SMA11 SMC9 SMC10 SMC11 C-side A-side 2 3 1 DCal Installation 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) 13 14 12 PHOS/EMCal do not follow ALICE Sector numbering 0 11

14. November 8, 2010EMCal & 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

15. November 8, 2010EMCal & 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

16. November 8, 2010EMCal & 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 FEE TRU Empty 2 FEE Crates of SM

17. November 8, 2010EMCal & 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. FEE TRU Empty 2 FEE Crates of SM

18. November 8, 2010EMCal & 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)

19. November 8, 2010EMCal & 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)

20. November 8, 2010EMCal & 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

21. November 8, 2010EMCal & 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

22. November 8, 2010EMCal & 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

23. November 8, 2010EMCal & 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?

24. November 8, 2010EMCal & 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

25. November 8, 2010EMCal & DCal Electronics, T.Awes 25 DCal Services 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 Rack A13 DCal

26. November 8, 2010EMCal & DCal Electronics, T.Awes 26 DCal Services 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 Primary LV (to 3 SM) Secondary LV (to SM)

27. November 8, 2010EMCal & 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

28. November 8, 2010EMCal & 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

29. November 8, 2010EMCal & DCal Electronics, T.Awes 29 EMCal/Dcal Readout Upgrade

30. November 8, 2010EMCal & 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

31. November 8, 2010EMCal & DCal Electronics, T.Awes 31 FEE Upgrade Design 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 2 x

32. November 8, 2010EMCal & DCal Electronics, T.Awes 32 EMCal/DCal Readout Upgrade SRS project lead by Hans

33. November 8, 2010EMCal & DCal Electronics, T.Awes 33 EMCal/DCal SRS Upgrade EMCal LED Control Unit

34. November 8, 2010EMCal & DCal Electronics, T.Awes 34 EMCal/DCal SRS Upgrade

35. November 8, 2010EMCal & DCal Electronics, T.Awes 35 EMCal/DCal SRS Upgrade

36. November 8, 2010EMCal & DCal Electronics, T.Awes 36 EMCal/DCal SRS Upgrade

37. November 8, 2010EMCal & DCal Electronics, T.Awes 37 EMCal/DCal SRS Upgrade For EMCal: 1 clock line 2 data lines 1 trigger line @80 MHz

38. November 8, 2010EMCal & DCal Electronics, T.Awes 38 EMCal/DCal SRS Upgrade -> Est. rate limit ~300kHz p+p; 5kHz Pb+Pb

39. November 8, 2010EMCal & DCal Electronics, T.Awes 39 EMCal/DCal SRS Upgrade == EMCal LCU module

40. November 8, 2010EMCal & 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

41. November 8, 2010EMCal & 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

42. November 8, 2010EMCal & 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

43. November 8, 2010EMCal & 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