DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade Columbia University New York Calorimeter Electronics Upgrade Leslie Groer June 20, 2000 DØ Collaboration Workshop NIU, DeKalb, Illinois June 19–23, 2000 Calorimeter and Intercryostat Detectors  Objectives + Design  System Description  Current Status + Progress  Schedule  (Cost + Manpower - see Lehman reviews WBS and 1.2.2)

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 2 DØ Calorimeters (1) Z y x   p  Liquid argon sampling  Stable, uniform response, rad. hard, fine spatial seg.  Purity important  Uranium absorber (Cu/Steel for coarse hadronic)  e/   1, dense  compact  Uniform, hermetic with full coverage   < 4.2 (   2 o ),  int  total)  Energy Resolution  e:  E / E = 15% /  E  + 0.3%   :  E / E = 45% /  E + 4% p _ L. Ar in gap 2.3 mm Ur absorber 3, 4 or 6 mm Cu pad readout on 4.6 mm G10 with resistive coat epoxy

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 3 DØ Calorimeters (2) Intercryostat Detector (ICD)  Scintillator with photo-tube readout  Improve E jet and E T measurement in this region /  Arranged in semi-projective towers  Cells ganged in layers  Readout segmented into   for charge detection  Transverse segmentation  x  x   At shower max. (EM3)  x  x   +2.5 kV (E = 11 kV/cm) gives drift time ~ 450 ns LayerCCEC EM1,2,3,4X O : 2,2,7,10 3mm Ur X O : (0.3),3,8,9 (1.4mm Fe) 4mm Ur FH1,2,3,(4) O : 1.3,1.0,0.9 6mm Ur O : 1.3,1.2,1.2,1.2 6mm Ur CH1,(2,3) O : mm Cu O : 3.0, (3.0, 3.0) 46.5mm Fe EM FH CH OH MH IH EM

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 4 Calorimeter Electronics  Objectives  Accommodate reduced minimum bunch spacing from 3.5  s to 396 ns or 132 ns and L ~ 2 x cm -2 s -1  Storage of analog signal for 4  s for L1 trigger formation  Generate trigger signals for calorimeter L1 trigger  Maintain present level of noise performance and pile-up performance  Methods  Replace preamplifiers  Replace shapers  Add analog storage  Replace calibration system  Replace timing and control system  Keep Run I ADCs, crates and cabling

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 5 Calorimeter Electronics 55K readout channels  Replacement of preamps, shapers, BLS  Addition of analog SCA storage  New Timing and Control  New calibration pulser + current cables Preamp/ Driver Trig. sum Filter/ Shaper x1 x8 SCA (48 deep) BLS Output Buffer Detc. Bank 0 Bank 1 Replace cables for impedence match new low noise preamp & driver Shorter shaping 400ns SCA analog delay >4  sec, alternate Additional buffering for L2 & L3 SCA new calibrated pulse injection BLS Card

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 6 Noise Contributions  Design for  400ns shaping  lower noise – 2 FET input  luminosity of 2x10 32 cm –2 s -1  Re-optimized three contributions  Electronics noise:  x 1.6   shaping time (2  s  400ns) (~  t)   lower noise preamp (2 FET) (~ 1/  2)  Uranium noise:  x 2.3   shorter shaping time (~  t)  Pile-up noise:  x 1.3   luminosity (~  L)   shorter shaping times (~  t)  Comparable noise performance at with new electronics as with old electronics at 10 31

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 7 Calorimeter Personnel Physicists, Engineers, Students... InstitutionNamePosition ColumbiaMichael Tuts (Project Leader)Physicist Leslie GroerPhysicist Mingcheng GaoStudent Shaohua FuStudent Al TehoEngineer SUNY,Dean SchambergerPhysicist Stony BrookRobert McCarthyPhysicist Mrinmoy BhattacharjeePhysicist Moustapha ThioyeStudent Vito ManzellaEngineer (Rochester)Florencia CanelliStudent LPNHE, ParisUrsula BasslerPhysicist Gregorio BernardiPhysicist Frederic MachefertPhysicist Bob OlivierStudent Herve LebboloEngineer Alain VallereauEngineer Jean-Francois HuppertEngineer Phillipe BaillyEngineer LAL, OrsayPierre PetroffPhysicist Melissa RiedelStudent Christophe de la TailleEngineer Yves JacquierEngineer Gisele Martin-ChassardEngineer Pierre ImbertEngineer Patrick CornebiseTechnician Michigan StateReiner HauserPhysicist ISN, GrenobleGerard SajotPhysicist Angste BessonStudent Mainz,Christian ZeitnitzPhysicist GermanyKarl JakobsonPhysicist FNALDavid HuffmanEngineer Lynn BagbyEngineer Patrick ListonEngineer Mike CherryTechnician Belinda JimersonContract Tech. Preamps BLS,T&C,db Calibration PS,etc. L. Ar Trigger

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 8 DØ Calorimeters Preamp boxes BLS racks Cables Cable winder

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 9 Preamp 2” FET driverpreamp similar to previous version except Dual FET frontend Compensation for detector capacitance Faster recovery time New output driver for terminated signal transmission out in Preamp New calorimeter preamp  Hybrid on ceramic  48 preamps on a motherboard

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 10 Preamp Species  14+1 (ICD) species of preamp  Feedback provide compensation for RC from detector capacitance and cable impedance  Readout in towers of up to 12 layers  0:EM1, 1:EM2, 2-5:EM3, 6:EM4, 7-10:FH, 11:CH  4 towers per preamp motherboard provides trigger tower (EM+ HAD) of  x  0.2 x 0.2 Preamp species Avg. Detector cap. (nF) Layer readout Feedback cap (pF) RC (ns) Total preamps A EM1,2, HAD B HAD C HAD D HAD E CC EM F EC EM3, G CC EM4, EC EM3, Ha-Hg2- 4 EC EM3, I— ICD

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 11 Preamp Status  Preamps  Prod. complete (60k)  Motherboards  Prod. complete (1250)  Testing, repair, labelling and stuffing of 19 species of motherboard almost complete (~1100).  Initial tests – 8 boards at a time  Dozen bad boards to be repaired  Burn-in test in 5k test stand before install. (96 boards = 4608 channels). 2/3 still to convert to new BLS system.  Crates  Fanouts, pulser cables installed (not ECS)  Install new power harness fuse block for ORC  Replace all cooling systems (heat exchanger, new fans, new air conduits) – ongoing  General clean up (cables, fixtures etc.) 5k test stand

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 12 L1 SCAs (2+2) L2 SCA Array of 48 capacitors to pipeline calorimeter signals (every 132 ns) BLS Card BLS motherboard v2.2 BLS daughterboard Shapers (12)  Use 2 L1 SCA chips for each x1/x8 gain - alternate read/write for each superbunch  Readout time ~ 6  s (< length SCA buffer)  L2 SCA buffers readout for transfer to ADC after L2 trigger decision  No dead time for 10KHz L1 trigger rate  10% (500) daughterboards being assembled & tested Output circuit Trigger pickoff/summers ~ 1 inch shaper

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 13 Shaper and Baseline Subtractor (BLS)  BLS Motherboards (1250)  48 shaper/BLS circuits per motherboard  All shapers in hand (62k)  SCA storage - 20 SCA/BLS (16 for L1, 4 for L2)  Final prototype (~20) testing at FNAL  Measuring noise and dynamic range of the complete analog front-end chain  10% (150) in production (~1 month)  BLS and ADC Crate Controllers  New/additional controls for coordinating the 144 analog samples per channel  New signals to BLS controllers  Prototypes  Timing and Control System  Need new controls to handle SCA requirements and interface to the new L1/L2 trigger system  Third prototype under test at FNAL

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 14 SCA status  Have 27k tested good in hand (need 25k).  Some being retested.  Labelling proceeding.  Were a major concern for a while. Longevity still unknown.  Burn-in tests for a few weeks at a time.  Spare wafers are available at the manufacturer (~3k) but $$$. 1” 12 channels 48 deep packaged

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 15 Timing and Control and ADC Systems  Testing third prototype of T&C board  Sits in VME crate in counting house, one per ADC crate  Uses Field Programmable Gate Arrays (FPGA) and FIFOs  Most of the FPGA functionality implemented and being debugged  Being used to read out old & new BLS and to trigger new pulser  Production (by July- August)  One ADC crate being read out via new VRB Timing & Control prototype ADC crate In MCH3

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 16 Calibration Pulser  96 independently pulsed channels  Fanouts installed and cabled in ECN and CC.  All pulsers installed. All cables strung (except ECS) or existing cables being reused. Small grounding modification being made to all pulsers.  Power supplies having control boards mounted.  Controls via EPICS/python scripts over VME  Interface board completed. Software under design and test at FNAL. Active pulse generator Trigger + Control 16 DC current cables (in back)  Designed and built by LPNHE, Paris & LAL, Orsay  Shorter shaping time - use active fanout to build charge injection pulse for accuracy power pulser

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 17 Cables and Crates  110  cable  30  from cryostat feedthrough to preamp box. Minimize reflections due to impedance mismatch. ~$0.5M cables. Completed Not been able to check all connections however due to lack of readout and DAQ.  Pulser cables laid. ECS still needs connectors. Control cables being laid this week.  Reusing some of the old pulser 75  coax cables for timing pulse - 2 per preamp crate ( total).  CC BLS cable trays modified to accomodate tracking crates and muon chambers.  Damaged ECS cables need to be repaired (~ 1 week FTE)  Recable ECS preamp backplane  BLS timing cables need to be refound and rerouted for new T&C system  1/3 of BLS backplane needs to be replaced to accommodate new timing and control (72 crates). CC+ECS done (48). ECN to do (24)

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 18 Power Supplies Preamp PS (25 complete) Low-noise commercial switching supplies for increased preamp power assembled at FNAL “Personality” card (preamps, pulser, muon etc) Steel magnetic shielding boxes ORC granted in April  Install in detector June  BLS PS (2 proto., 44 to rework) New transformer Modified output modules Modified control/monitor board  Fusing for safety  Similar power but run hotter  Safety review soon for ORC (incl. ADC)  Install in detector Aug Pulser PS (15) Commercial modules, assembled in Paris Supplies built  Control/Monitor boards being added ORC granted in April

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 19 Controls and Monitoring  EPICS control via python scripts and GUIs  Have controls for most voltage supplies and for VME access; logging scripts (SDDS)  COOR/Comics/EPICS used for downloads to crates via VME / VI  Calibration pulser control being designed (EPICS/VME)  HV monitoring + control discussions starting – need for Sept.

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 20 Online Calorimeter Calibration  Database design/implement by SUNYSB & Paris  Accumulate zero-bias data for each calorimeter cell  Pedestals – electronic & Ur noise  Pulsed – gains  Goals  Measure electronics to < 1%  Study channel-to-channel response; linearity  Monitoring tool  Calibration software runs in L3 node  Accumulates ADC counts/channel  Calculate mean, sigma for both gains (x1/x8)  Send results to calibration server  database  Version of cal_elec runs on the online host (since Feb – commissioning milestone)  Grabs data from data distributor  Calculates and reports running means/sigmas  Print status reports  Being used to debug ECN East crates  Still needed for Examines  Single event dump (hex)  Pulser control interface  Communication with taker, COOR, comics

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 21 Pedestal Data from DAQ Commissioning Sigma tails from preamp capacitance Mean vs. channel Sigmas crate 11 Means crate 11 Sigma vs. channel

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 22 Calorimeter Schedule Mar 00Preamp production complete Apr 00Preamp power design ORC granted Jun 00Start assemble BLS power supplies; submit ORC documents Install cooling, power, preamps in ECN; test with old BLS Complete preamp board stuffing; burn-in in 5k teststand Finalize pulser cabling and grounding System checkout with DAQ started;  debug + commission (physicist shifts) 1-Jul-00ECS moves onto platform Jul 00Remove old preamps, power, cooling from ECS Recable ECS Modify 5k teststand for new BLS Complete pulser power supply assembly 14-Jul-00Lose access to detector/MCH for ~ 3 weeks Aug-00** Receive and certify 10% BLS boards; start full production Install ECS preamp cooling and power Install CC cooling, power and preamps; checkout with new BLS Complete pulser control interface Start final T&C / fanout production Sep-00Install ECS fanouts, pulser cables, preamps Start production of initial Trigger Pickoff & Summer cards Fill a cryostat and test seals and HV Nov-00Test Trigger Pickoff & Summer cards ** Receive and test BLS mother/ daughterboards Install ECN BLS power Dec-00Cosmic ray test Jan-01** Start BLS install and checkout Feb-01 Calorimeter checkout complete + ready to roll in ** = critical path

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 23 Intercryostat Detector (ICD)  Design  16 supertiles per cryostat with a total of 384 scintillator tiles  WLS fiber readout of scintillator tiles.  Clear fiber light piping to region of low field. Re-use existing PMT’s.  Readout/calibration scheme for electronics same as for L. Ar. Calorimeter but with adapted electronics and pulser shapes  Muon LMBs used for PMT calibration  Objectives  Maintain ICD performance in presence of a magnetic field and additional material from solenoid  Improve coverage for the region 1.1 < |  | < 1.4

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 24 ICD Personnel Physicists, Engineers, Students... InstitutionNamePosition Texas, ArlingtonAndrew WhitePhysicist (Project Leader) Kaushik DePhysicist Yan SongPhysicist Jia LiPhysicist Mark SosebeePhysicist Ted EltzrothEngineer Louisiana TechLee SawyerPhysicist Kathleen JohnstonPhysicist Dick GreenwoodPhysicist Alan StonePhysicist DeWayne HillEngineer Qun YuStudent

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 25 Intercryostat Detector  Supertile modules  All completed and installed on EC’s (May)  Relative yields measured at UTA (  12%) > 20 p.e./m.i.p.  Fiber cables  Problem finding company to fabricate, now solved – prototype under development  expect 40-50% signal loss over 5- 6m cable  Large effort at La. Tech to complete

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 26  Fiber backplane/ shielding block/crate  Under assembly at UTA  North end (2) back- planes install in Sept.  Muon LMB (LED) to be used for gain calib. delivered to UTA. Intercryostat Detector  Electronics (La. Tech)  All motherboards made, 50% stuffed  All preamps (species I) in hand  HV bases being completed  Mechanics for drawers completed  PMTS  All Hamamatsu R647’s recovered from Run I ICD. Under retest at UTA.

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 27 ICD Schedule Oct 99Start tile module assembly Dec 9920% of tile modules tested Apr 00Tile modules completed May 00Tile modules installed in D0 Jun 00Complete electronic board fabrication Finalize cable routing; build extra cable chutes Complete LV power supply construction Install platform electronics Jul 00Complete PMT, fiber backplanes tests Complete and test HV base fabrication Install LMBs in backplanes Aug 00Complete fiber backplanes / cables Assemble and test readout Complete LED calibration Ship drawers to FNAL Sep 00Backplanes / cables installed in D0 Oct 00Complete electronics install Commissioning ICD North Nov 00Commissioning ICD South Jan 01 ICD N+S commissioned

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 28 Summary  No major stumbling blocks for either system  Lots of work to do though...  Infrastructure in place  Single slice tests going on  Full system integration, testing and calibration....  Onto Run 2 !

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 29 Milestones Calorimeter Front-End Electronics Task complete  Task underway

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 30 Milestones Calorimeter Front-End Electronics   Project Manager’s Milestones P Director’s Milestones PPPP

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 31 WBS  M&S cost estimate in FY95$  Contingency on total estimated cost WBSITEM 1.2.1FRONT-END ELECTRONICSM&SCont.TOTAL %Cost Preamp System 971,77361,028, BLS System 2,317,924102,538, ADC Controllers 20, , Timing System 170, , Calibration System 210,000210, Cables Feedthrough-Preamp 557, , FRONT-END ELECTRONICS4,247,47784,569,152 OTD=Obligated to date CTC=Cost to complete EAC=Estimate at Completion CR=Contingency Remaining %CCTC=% contingency on CTC

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 32 Milestones Calorimeter Intercryostat Detector  Project Manager’s Milestones P Director’s Milestones PP 

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 33 WBS  M&S cost estimate in FY95$  Contingency on total estimated cost OTD=Obligated to date CTC=Cost to complete EAC=Estimate at Completion CR=Contingency Remaining %CCTC=% contingency on CTC

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 34 BLS Crates on Platform

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 35 Calorimeter Schedule

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 36 Intercryostat Detector  Supertile modules - all completed and installed (May) on D0 - relative yields measured at UTA (  12%)  Electronics (La. Tech) - all motherboards made, 50% stuffed - all preamps in hand - HV bases being completed - mechanics for drawers completed  Fiber backplanes/crates - under assembly at UTA - North end (2) backplanes installation, 9/00  Calibration System - muon LMB’s delivered to UTA  PMTs - Hamamatsu R647s under retest at UTA  Fiber cables - Problem finding company to fabricate, now solved - prototypes under development  Cables - large effort by La Tech to complete

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 37 Intercryostat Detector Schedule Oct 1999 Start tile module assembly Dec % of tile modules tested April 2000 Tile modules completed May 2000 Tile modules installed in D0 Aug 2000 Fiber backplanes/cables completed Sept 2000 Backplanes/cables installed in D0 Sept 2000 Commissioning ICD North Nov 2000 Commissioning ICD South

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 38 ICD Schedule

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 39 Online Calorimeter Calibration (from Mrinmoy Bhattacharjee)

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 40 Shaping and Dual Range x 8 x1 Trig pickoff Filter Gives 15-bit dynamic range with 12-bit accuracy ~ 1 inch Shaper

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 41 DØ Calorimeters Z y x   p  Liquid argon sampling and uranium absorber  Hermetic with full coverage  < 4.2   int  total)  Transverse segmentation  x  x  Intercryostat Detector (ICD) p _ Energy Resolution: e:  E / E = 15% /  E  + 0.3%  :  E / E = 45% /  E + 4%  Scintillator with photo-tube readout  Improve E jet and E T measurement in this region /

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade Columbia University New York Calorimeter Electronics Upgrade Leslie Groer June 20, 2000 DØ Collaboration Workshop NIU, DeKalb, Illinois June 19–23, 2000

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 43 Overview  Calorimeter Electronics (WBS1.2.1)  Objectives + Design  System Description  Current Status + Progress  Schedule  (Cost + Manpower - see Lehman reviews)  InterCryostat Detector (WBS 1.2.2)  Objectives + Design  System Description  Current Status + Progress  Schedule  (Cost + Manpower - see Lehman reviews)

DØ Collaboration Workshop NIU, DeKalb, IL June Leslie Groer Columbia UniversityCalorimeter Electronics Upgrade 44