LHCb Outer Tracker Upgrade Developments T.Sluijk , Albert Zwart 2-2-2009 Photo: One the 12 Outer Tracker Cframes ready for installation, but Not yet equipped with 36 Front Ends At the module ends 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart The option of Keeping the OT as Straw Detector - Install everything new in shutdown in 2014 - Change centre area of OT in view of occupancy More Inner Tracker silicon in center - Detector modules remain the same format 128 CH - All data to farm, readout at 40MHz, no zero data suppress preferred Front End : Same housing HV and Amp ; New TDC and OUTPUTS Maybe 1 Ribbon per FE (MPO connector) 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade Developments, T.Sluijk, A.Zwart Attack of some Eye Catching Problems New TDC choice - New Otis asic - only needed for High SLHC levels after 2018 We need info here 30Krad/10y on OT Front Ends? - (understaffed, long development times, change to 130nm technique?) -TDC in Rad tol FPGA - can be used for Pre-SLHC levels 2014 – 2018 only 4 Kilorad /4 years Total dose on FE’s Data Transmission is bottleneck Smaller problems: Regulators , ADC, DAC for thresholds (now in OTIS) New Control compatible with GBT (TFC and ECS) Make 432 partly-new Front Ends (exchangeable units) Install new cabling (also in C-frames) 2-2-2009 LHCb OT Electronics Upgrade Developments, T.Sluijk, A.Zwart

Optical Transmission from Frond Ends out of radiation Area 2-2-2009 LHCb OT Electronics Upgrade Developments, T.Sluijk, A.Zwart

Best Solution For Optical Transmission For the LHCb Outer Tracker Single Fiber (not sure if present Multimode supports 1300-1500nm) -> Data fiber installation could stay the same (also still using present TFC and Specs) - promising “unlimited bandwidth” Cern versatile dual link with GBT - Compatible with all detectors at CERN - Promising “high bandwidth” Single Ribbon (12 fibers parallel) - Boring, already in use at 1.6GBPS / CH bandwidth outside radiation 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Present Outer Tracker Front End Parts 1 1 1 Otis2- #1 8 Single Multimode Fiber Re-use? 32 32 Otis2- #2 VCSEL GOL 1.2Gb/s Otis2- #3 Otis GOL Contol and Supply change HV and ASD Stay the same Otis2- #4 32 128 3 Supply regulators Specs control TFC Tim & trig Fiber Cat5 Copper Cable 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart ELECTRONIC outputs are limiting speed TO ~5Gbps/laser so 16 TDC ch per laser 1 Otis2-2 #1 1 16 8 Otis2-2 #2 4.8 GBPS raw, 3.2 Gb/s DATA GBT GBT 32 Otis2-2 #3 1 16 8 Otis2- #4 GBT GBT Otis2- #5 1 16 8 Otis2- #6 GBT GBT Otis2- #7 1 16 8 Otis2- #8 GBT GBT 128 JTAG GBT SCA I2C GBT One Wire CLK/TFC 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

Why Single Fiber solution Re-use of data fiber infrastructure We need more 5Gbps channels on this fiber so WDM Wavelength Division Multiplexing Coarse WDM standard for uncooled lasers 1300-1500nm , 20nm spacing telecom. 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

Outer Tracker Upgrade SINGLE FIBER SOLUTION for data Transmission Overview of CWDM Data Transmission Solution Electrical 5Gb/s TELL40 Reflective Electro Absorption Modulator Laser1..8 DE-SER #1 SER #1,2 TDC32 #1 Front End #1 Optical 8* 5 Gb/s Optical Isolator DE-SER #1 SER #3,4 TDC32 #2 DE-SER #1 Single fiber DE-SER #1 TDC32 #3 Optical 4*10 Gb/s SER #5,6 DE-SER #1 SER #7,8 TDC32 #4 DE-SER #1 FPGA With 5Gb/s links 8 CH De-Mult WDM DE-SER #1 DE-SER #1 Coarse Wavelength Division Multiplexer (60Eu/ch) Laser 8 8 PIN diode detectors 8 de-serializers 1. Laser in Radiation Safe Area 2. Reflective modulators in Front Ends (Ga As) rad tol ? (no polarization mod found) 3. Most effective at highest speeds 4. Speed limited by electronics WDM= Wavelength Division Multiplexing= “Different Colors” Front End # 432

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Cost of Single fiber CWDM solution Tell40 side: 8 laser 1000E 8 Isolator 4000E 1 CWDM demux 500E 8 pin diode det 5gb/s 400E 8 amp chips 240E Total: ~6 KEu /FE FE Side : 8 drivers 8*25E=200 8 modulators 8*1200E=9600 1 CWDM multiplexer 500E Total: ~10KEu /FE Fiber: 100m fiber 100E 4 fiber connectors 100E 2 chassis parts 50E 2 patch panels 20E Total ~250Eu / FE Total 432 FE: ~16K * 432= ~6.9 M Euro Conclusion: Expensive Complex 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Present CERN VERSATILE LINK development Bi directional 3.2Gbps-data rate based on GBT 130nm chip called GBT13 Bidirectional means : Timing and control to Front End Data from FE to Tell boards (computers) Both 2.56 Gbps data rate ROSA= Receiver Optical Sub Assembly 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Cern Versatile link solution NEW FRONT END WITH MULTIPLE, BIDIRECTIONAL VESATILE GBT LINKS NOT A GOOD SOLUTION TOO MANY FIBERS, TOO MANY TRANSCEIVERS 1 32 128 GBT 3.2 Gb/s DATA #8 Otis2-2 #1 16 8 Otis2-2 #2 Otis2-2 #3 Otis2- #4 Otis2- #5 Otis2- #6 Otis2- #7 Otis2- #8 #1 #9 GBT SCA JTAG I2C One Wire CLK/TFC dual transceiver estimate 400 E 9*400=3.6 K 3.6*432 =1.5M For Front Ends only 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Conclusion Nicely compatible Rad tolerant Not compact for front End if we need 8-12 CH Change of infrastructure, dual links Next step is to combine versatile link into Ribbon(12) and MT or Snap12 connector For compact cabling and Front end 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Presently used transceivers can almost do it Avago Tell1 opto board transceivers 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

New snap12 units can do it better 6.5 Gbps, GBT limits to 3.2 GBPS net (4.8 with err corr) 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

SINGLE RIBBON12 OUTPUT PER FRONT END SEEMS GOOD SOLUTION, Rad hard or SLHC? 1 32 128 GBT # 1 # 8 Otis2- #1 16 8 Otis2- #2 Otis2- #3 Otis2- #4 Otis2- #5 Otis2- #6 Otis2- #7 Otis2- #8 12 VCSEL TRANSM #9 GBT SCA JTAG I2C One Wire CLK/TFC 1 RIBBON WITH MPO12 CONNECTOR Dual fiber * GBT garanties compatibilty with all detectors 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

432 Ribbons needed for Outer Tracker (excl spare) FE1 FE9 FE10 FE18 FE19 FE27 FE28 FE36 18 ribbons in 1 cable Cframe with 36 Front Ends 36 RIBBONS NEEDED FOR EACH OF THE 12 C FRAMES IN OUTER TRACKER = 432 EX SPARES 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

A Ribbon bundle can be small 8 Ribbons in tight bundle =1*1cm square 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

Space used by 56 multi ribbon cables to barracks in tunnel groove, now 6 (Multi mode 5Gbps safe over 100m max) 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart More Bandwidth and Redundancy for a Broken VCSEL or fiber with an added multiplexor (Atlas experienced broken vcsels or links) 1 Otis2- #1 1 16 8 Otis2- #2 GBT # 1 GBT 32 Otis2- #3 1 16 8 Otis2- #4 GBT 12 VCSEL TRANSM GBT Otis2- #5 1 16 8 Otis2- #6 FPGA / MUX GBT RIBBON12 GBT Otis2- #7 1 16 8 Otis2- #8 GBT GBT # 8 128 GBT # 9 GBT # 10 GBT #11 GBT SCA JTAG I2C One Wire CLK/TFC 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

Radiation Potection Wall The “Ribbon +Duo per Front End” Solution -- With Separate TFC and ECS 8 m 25 m 51-55 m 3 m Ribbon with 12 fibers Radiation Potection Wall Cframe Patch Panel Tell x board 8 ribbon12 cable 96 fibers FE 12 fold fiberoptic Transmitter HFBR775 FE GBT receiver Barrack Patch Panel N 12 fold fiberoptic Receiver HFBR785 Cframe MPO-MPO Cavern MPO-MPO TFC + ECS 2 Tunnel Optical Splitter

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Ideal : Single Ribbon to Front End 1. Data from FE to Tell 40 boards, 2. Control (TFC, ECS) coming from Tell40 Opto boards ! We need split ribbon for this. Timing and Trigger ECS DAQ 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Front End with more Bandwidth and Redundancy for a Broken VCSEL or fiber with an added multiplexor (Atlas experienced broken vcsels or links) 1 Otis2- #1 1 16 8 Otis2- #2 GBT # 1 GBT 12 VCSEL TRANSM 32 Otis2- #3 1 16 8 Otis2- #4 GBT Split Ribbon GBT Otis2- #5 1 16 8 Otis2- #6 FPGA / MUX GBT MPO12 conn MPO12 conn GBT Otis2- #7 1 16 8 Otis2- #8 GBT GBT # 8 128 GBT # 9 GBT # 10 GBT #11 GBT SCA JTAG I2C One Wire CLK/TFC 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

The “Single Ribbon per Front End” Solution – TFC and ECS on same Ribbon Tunnel Patch Panel MPO-MPO Cframe Patch Panel Radiation Potection Wall Front End Tell x board Barrack Patch Panel 10 fibers 2 fibers GBT Transceiver = TFC / ECS Ribbon with 12 fibers 8 ribbon- cable (each 12 fibers) FE 12 fold fiberoptic Transmitter HFBR775 GBT Transceiver channel Split Optical cable For testing 12 fold fiberoptic Receiver HFBR785 MPO-SC Cassette

Opto system installation Barracks 1. Install fibers in frame Shielding wall D3C01 7. New Tell 5/40 for 480 ribbons 2. New fiber-patch-panel 6.New Patch Panel in Barrack D 3. 40 ribbons in chain 5. New cables to barracks (60) 60 cables with 480 ribbons incl spare 4. New Tunnel OT Patch Panel 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

Cost Optics Outer Tracker excl spare Detector: FE Transceiver 432 * ~800 Euro= 345 K incl 12 gbt’s 1 versatile dual transc ~300*432=129k Ribbon in Cframe 432 * 150E = 65 K Patch panel in Cframe 12* 500= 6K Split ribbon +2 MPO 432 *150 = 65K total 610 K To tunnel patch panels: Ribbon 25m 432*150= 65K Patch panels 432 “through” =5k total 70k Long distance 8-ribbon cable (54*55m) 432/8= 54 * 3000 Euro= total 162 K (formerly 24k incl spare) Tell40 side: PP =2K patch cables 432*100 E=43200=43 K Receivers + transm= 1.6k*432= 691 K Split = 432* 100 E= 43k total 779K Material cost 1,621 M Euro=~1.6M (excl manpower) 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Studies Radiation tolerant transmitter/rec for Front End with proof of working on 100m Multi Mode cable work with Atlas ad Cern Upgrade groups TDC in FPGA (or asic, OTIS2) Regulators substitutes Fiber placement in Cframes (in situ?) 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

Radiation hard version of Transceiver study (in cooperation with Atlas SCT/PIX) -Electronics of commercial transceiver not radiation tolerant -A combi of VCSEL and 12 GBT’s is very rad tol. Opto pack developed by Atlas Photo from talk K.K. Gan 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Installation Remarks Present DC cabling/supply can be used Present ECS ,TFC and Control box will disappear New 3A regulators needed for Front Ends - New RibbonsFibers have to be put in cframes in situ (maybe on outsides) New ribbon 96 cables have to be put in floor or elsewhere for 5 Gbps <100m preferred 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart

LHCb OT Electronics Upgrade T.Sluijk, A.Zwart Conclusion: 1 ribbon per Front End would be nice 8 fibers for data, 2 spare/redundant and 2 fibers for control channel Rad tolerant transceiver could be beneficial Do we go for SuperLHC and is levels? Installation of fibers will be difficult 2-2-2009 LHCb OT Electronics Upgrade T.Sluijk, A.Zwart