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15th ALICE RRB

15th ALICE RRB. Collaboration Status Project Status Integration Detectors (selection) Physics. CERN-RRB-2003-144. Collaboration Status. Collaboration: ~ 1000 people , 30 countries , ~ 80 Institutes ~ ½ ATLAS,CMS, ~ 2x LHCb Institutes

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15th ALICE RRB

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  1. 15th ALICE RRB Collaboration Status Project Status Integration Detectors (selection) Physics CERN-RRB-2003-144 15th ALICE RRB J. Schukraft

  2. Collaboration Status • Collaboration: ~ 1000 people, 30 countries, ~80 Institutes • ~ ½ ATLAS,CMS, ~ 2x LHCb • Institutes • new:IPE Karlsruhe (Germany) (associate member) • participates in TRD electronics • new: RIKEN(Japan) (associate member) • Pixel R&D • new:FESB Split (Croatia) • Offline, DAQ. Replaces Uni. Zagreb, Inst for Mathematics • new:CEADEN Havana(Cuba) • Offline • agreed: continued participation of Athens (Greece) • contacts:Turkey, Brazil, Spain, Pakistan … • Funding Issues • Romania (TRD chamber production, flagged as urgent at last RRB) • financing and cash flow solved => start of production preparation in Bucharest • Slovak Republic (TPC chambers, trigger boards) • essentially no operation funds in 2003 • hurts production & testing of equipment, no travel funds, …. Breaking News Slovak Rep: 2003 funds have been agreed 14th October

  3. Collaboration Status • major outstanding issues (little progress in 2003) • US participation (~ 10 M$): EMCAL for jet physics • stillwaiting for DOE review !!!!! • Japanese participation (~ 10 M$): TRD, PHOS • proposal submitted end 2002, not approved • however, R&D money for both PHOS and TRD granted • Chinese participation (~ 3 MSF): PHOS • still under discussion, outcome uncertain (final answer promised before end 2003) • MoU addendum with JINR (JINR has not signed original MoU) • agreed on reduction & redistribution of commitments (3 MSF -> 2.4 MSF + 95 kSF CtC) • Muon magnet: 1.025 MSF + 90kSF (CtC) • TRD chambers: 260 kSF • PHOS crystals: 870 kSF (in-kind contribution from Ukraine to JINR budget) • Common Fund: 239.4 kSF + 5 kSF CtC • MoU addendum with Greece • continued participation of Athens in forward dets + small contributions in TPC & TRD • new construction funds: 210 kSF new Common Fund: 50 kSF • payment of outstanding bills (some 50 kSF)

  4. ALICE Detector TOF TRD HMPID TPC PMD PHOS ITS Muon arm

  5. Large Structures • rapid progress • L3 power test • successful Baby-Space frame Phos rails Muon Absorber

  6. Space Frame

  7. TPC Field Cage Inner Drum Central HV electrode

  8. The Inner FC vessel has been rebuilt What happened: • Leak test: 25 Feb03 --> leaks at glue joint between composite and flange • Ultrasonic test: 27 Feb03 --> faulty glue bonds • First repair by Fischer: 10-14 Mar03, only on outer joint • Decision to rebuild: 24 Apr03, order 6 May03 • New IFV assembled & tested : OK Consequences: • Total delay estimated at 7 months, • Complete FC equipment Jul04 • Reduced testing & commissioning phase Actions taken: • rearranged planning for non-critical items • shifted manpower from other projects • Expect to reduce delay to < 4 months • Sufficient time for testing ( 7-9 months) Defective vessel

  9. Readout Chambers & FEE • Chamber production finished spring 2004(slight, but non-critical delay) • IROC: 90% done , OROC: 50% done • Electronics • PASA: engineering run ok • full production by Jan 04 • ALTRO: all chips available • testing ongoing (~20% done) • Boards: • FEC: production start Oct. 03 • RCU: still prototyping • TPC project: • despite 4-7 months delay going well • Planning includes very long and thorough pre-commissioning • will be first ALICE detector completed • still sufficient time for tests (6-9 months)

  10. Inner Tracking System (SPD, SDD, SSD) • Problems solved: • some FEE ASICs (SDD, SSD) in the 0.25 mm DSM process showed yield problems (other non-ALICE designs also affected) • yield problems identified and solved !!! (modified step in foundry process, yield > 90%) • production runs for these chips are now or have been submitted • SDD very successful test of complete and final R/O chainin test beam (Aug) • SPD thin assemblies (200 + 150 micron): verified !!(last remaining R&D problem) • production sites certified (SPD: Bari, Padova; SSD: Helsinki, Strasbourg) • Problems remaining or new: • SPDladders: some delay (3 months) for NA60 production (SPS HI expt) • Action: pressure on bump bonding supplier, use ‘dummies’ to validate assembly • SDDraw material (NTD silicon) still not fully qualified (no longer commercial standard) • sensor pre-production (50 detectors): evaluated by 12/03 • Action: Not (yet) on critical path • Critical: Mass production of microcables in Ukraine (needs significant funds early 2004) • Action: in discussion with Ukrainian FA, meanwhile start small series pre-production • Mechanics & support: • identified schedule problem of installation tests TPC/ITS due to TPC delay (end 2004) • Action: accelerate TPC schedule and/or produce dummy mechanics • ITS : No contingency & very tight schedule

  11. Time of Flight (TOF) • Major Progress • Strip mass productiontools & sites ready • FE ASIC excellent results at PS • Final GIF results (no ageing effects) • Technology adopted and tested at RHIC • STAR has built and tested in the experiment a ~ 1m2 prototype MRPC • system resolution ~ 85 psec • first physics paper submitted within weeks • plans to built a full barrel Major success and validation of this brand-new technology in an experimental environment

  12. The STAR Barrel TOF MRPC Prototype Prototype Tray Construction at Rice University MRPC design developed at CERN, built in China 28 MRPC Detectors; 24 made at USTC FEE Neighbor CTB Tray EMC Rails   50 ps, 2 meter path Strong team including 6 Chinese Institutions in place Completed Prototype 28 module MRPC TOF Tray installed in STAR Oct. ‘ 02 in place of existing central trigger barrel tray

  13. The STAR Barrel TOF MRPC Prototype Prototype modules met all performance specs in the STAR environment and produced important physics on PID’d Cronin Effect Proposal reviewed and approved by STAR and has been submitted to BNL Management

  14. HMPID • module 3 (out of 7) under construction • all FE cards produced, 10% tested (100% yield) • going very well…. Module #1 under HV test

  15. TRD • Japanese funding not (yet) agreed • decide to implement reduced TRD coverage (~ 60%) • time critical components (PASA) purchased for full detector (added cost: 80 kE) • later production & installation of full TRD will remain possible • Japan will submit TRD proposal again end 2003 • Electronics • PASA engineering run finished • being packaged right now for evaluation • DCS board finished • now under functional test • TRAP2 – digital chip received back • contains full functionality (21 ADCs, digital filters, processors, logic,..) • few functional bugs but chip can be used for all system integration tests • Chambers • production about to start

  16. TRD chamber production finished radiators • chamber assembly - Heidelberg • ready to start production in November • Bucharest and JINR • ready to start early 2004 • radiator assembly Münster • 20% done

  17. Funding of PHOS: crystal funding in Russia subject to yearly allocation (memorandum signed Minatom & KI) awaiting decision in China & Japan next batch (3000) production crystals shipped to CERN first module (out of 5) complete by end 2003 Electronics & R/O new & simpler FEE design adapted to available resources (based on T first measurement of time resolution: < 1.5 nsec (specs: < 2 nsec) large prototype (256 channels) successfully tested Ebeam 5 GeV Timing resolution vs deposited energy Photon Spectrometer (PHOS) PbW04 crystal

  18. Muon Magnet Coils • Arrived at CERN end September from Nantes (France)

  19. Muon Magnet Yoke • ~ 8 months delay because transport from JINR could not be organized !!! • delays pre-assembly and installation of muon magnet in Phase I • Action: • use contingency (6m) • shorten assmbly&test phase (2m) • Now on critical path !!! • first module(s) are on the ‘road’ • continued problems to provideRussian railway cars ! Iron Yoke finished at JINR Dec 02 waiting for transport to CERN

  20. Muon Tracking • Problems solved: • Station 1&2 had to be redesigned with increased stiffness • Station 1 (Orsay): new quadrant ready for testing end October • Station 2 (Calcutta): module 0 beam test October/Nov • Station 3,4,5 (‘slats’):4 production sites ready for start of mass production (end 2003) • Cagliari, Saclay, Gatchina, Nantes • Problems remaining: • FEE production preparations • large and complex system • may need some strengthening of the groups involved • Action: started discussion to strengthen electronics group Despite some delays (structures, FEE) and setbacks (Station 1), muon arm not on critical path (installation largely decoupled from barrel detectors) Crucial phase will be the transition towards mass production end ’03 !

  21. FEP DDL DIU HLT Farm Detector Readout Electronics H-RORC DDL SIU DDL SIU DDL DIU DDL SIU Det. LDC DDL DIU HLT LDC D-RORC D-RORC Event Building Network GDC GDC GDC GDC GDC Storage DAQ/HLT Interface • Interface between DAQ and HLT defined • uses standard ALICE components & protocols • minimizes new R&D and testing • maximizes independence of DAQ & HLT • different deployment schedules ! pre-requisite for Trigger/DAQ/HLT TDR end 2003

  22. ALICE Offline project • Core software: Framework & Infrastructure for computing • aspects of both a specific sub-project and ‘infrastructure’, i.e. a common project • hybrid nature one of the reasons that resource needs are difficult to address • Detector specific code: simulation, reconstruction, calibration,.. • usually integrated with detector construction project • Physics analysis: • distributed widely in the collaboration • Analysis & detector specific code • done essentially outside CERN (84%) • some mp shortfall identified • expect to cover needs mostly with physicist shifting from construction to analysis in due time

  23. ALICE Core Offline Strategy • ‘Grand Design’ strategy • establish user requirements • design architecture • establish schedule & resource needs • get resources & start work • pragmatic approach • establish user requirements • collect all available resources • prioritize requirements and adapt scope to match available resources & skills • continuously update planning and priorities according to situation • Disadvantages • product potentially less complete, less functional, less performing • project planning is very difficult • failureifimportant components are missing in the end • Advantage when resource limited: • maximize chances for apossibly less than perfect, BUT WORKING product Software ≠ Detector • can work even if incomplete • is never finished

  24. CERN Portugal 12% Hungary, Germany, Romania 10% Croatia Ericsson Armenia 2% 48% 4% India 7% USA 3% Croatia 3% 8% 3% Poland Italy Core Offline Manpower • CORE team: • small core team located at CERN (~ 18 FTE) • few permanent staff,70% on short term contracts • => high turnover, ‘fragile’ structure • aim to slightly increase permanent staff • major “horizontal” projects farmed out • Detector DB (Warsaw TU), Grid testing (INFN) • Distributed computing (several locations) • Computing Review recommendations to ALICE • increase permanent/long term staff to about 50% • increase Core team by 3-4 FTE’s • worry that too many tasks are postponed too long • improved ‘service’ to collaboration (QA, documentation) • ALICE reaction • discuss within ALICE and with FA how to address the problem • ideally institutes/FA would volunteer to reinforce offline project at CERN • how to ‘credit’ the increased effort ? • is more ‘farming out’ possible ?? • explore ‘common funding’ solutions ??

  25. 2003: Significant number of delays and missed Milestones Milestones • Action: In depth internal planning and status review of all major projects

  26. Outcome of Planning Review • Reasons for delays: • mostly technical problems, most critical ones all solved by now: • TPC FC; ITS DSM electronics yield, muon chamber mechanical stiffness • some problems with logistics & planning • muon magnet yoke transport • Consequences: • majority of delays are still non-critical • sufficient contingency in projects, don’t touch the ‘installation float’ • Muon tracking chambers, PMD, HMPID, TPC • some areas however remain critical (Muon tracking electronics, ITS, muon magnet) • Actions taken: • see ACTION items on previous slides • rearranged priorities and resources • technical solutions to accelerate production • reduced testing (muon magnet), which however involves certain risks • continued and close monitoring by Technical Coordination • Status:Plan in place to recuperate delays by early 2005 • Installation dates (including ‘floats’) still intact • Adjust planning for March CR, when remaining systems will be in production

  27. Summary • Collaboration • still slightly increasing • major decisions outstanding (US, Japan, China) • Funding • major uncertainty : • PHOS: awaiting decisions in China & Japan • other problems: • cash flow in Ukraine for ITS microcable production • funding profile in Slovakia • Detector • majorproblems solved: • TPC inner field cage rebuilt • HAL 25/SDD electronics yield ok • muon tracking station 1/2 redesigned & tested • majorproblems remaining: • tight schedule for ITS, mass production not yet started • muon magnet delay (arrival of yoke) • muon tracking electronics: human resources very tight

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