23 rd ALICE RRB l Collaboration News l

23 rd ALICE RRB l Collaboration News l Project Status ð Planning ð Installation & Commissioning 24 October 2007 23 rd ALICE RRB J. Schukraft CERN-RRB-2007 -066

Collaboration News l New Institutes ð LPSC Grenoble (associate -> full member) EMCAL (construction) ð California Polytechnic State Univ. (USA, NSF funded) EMCAL (software) ð Applying: Yonsei University (Korea) decision at next CB l Elections/Nominations ð CB chair: L. Riccati (Torino) reelected years ð Technical Coordination: L. Leistam (CERN) µ Deputy TC: W. Riegler (CERN) from 5. 4. 2008 µ C. Fabjan retires in 2008, was TC since February 2001 ð Run Coordinator: P. Kuijer (NIKHEF) year ð Spokesperson elections will be held in July 2008 1. 1 2008 for 3 5. 4. 2008 for 3 years 1. 1. 2008 for 1 l EMCAL Funding ð Italy: project continuation funded in 2008 (INFN Sept 2007) µ approved by France (CNRS) in March 2007 ð USA: DOE CD 2/3 review on 18/19 December 2007 2 24/10/2007 23 rd RRB J. Schukraft

ACCORDE HMPID TOF TRD TPC PMD PHOS ITS 3 Muon arm ALICE Detector 24/10/2007 23 rd RRB J. Schukraft

Planning & Schedule l Changes since April 2007 ð end 2007 run at 900 Ge. V has been replaced by mid 2008 run at full energy l Additional time used for: ð repair of pixel detector (as announced in April) ð production & installation of further modules: µ TOF (7 ->17 or 18) µ TRD (2 ->5) µ PHOS (1 ->3) ð take more time for testing and pre-commissioning of individual systems ð add more cosmic running for global commissioning and initial alignment l Expected start-up configuration mid 2008 complete: ITS, TPC, TOF, HMPID, muon arm, PMD, trigger dets (V 0, T 0, ZDC, Acorde), . . µ partially complete: PHOS(3/5), TRD (5/18), DAQ/HLT (20 -30%) µ l Beyond 2008 4 ð complete DAQ/HLT capacity (shifted from 2008 to 2009) in line with expected LHC running ð complete modular detectors: TRD (2009), PHOS (2010), EMCAL (2010/11) 24/10/2007 23 rd RRB J. Schukraft

Infrastructure & Services Miniframe l Large support structures ð Miniframe cabled, installation mid Nov µ miniframe provides services to A-side of central detectors ð EMCAL support cabled, installation early Nov l Services, infrastructure ð installation of services nearing completion µ testing of cables/connectors µ commissioning of cooling/gas EMCAL Support l Commissioning of cooling: more difficult and time-consuming than anticipated ð several 100 k. W of heat in FEE, some det. need DT < 0. 10 C ð cooling circuits work below atmospheric pressure (‘leak less’) µ working pressure range reduced to 200 mb < p < 950 mb µ pressure drops too large / problems with air pockets Good sector µ resolved by re-routing of some pipes TPC cooling pressure versus time 5 15 min Bad Sector 24/10/2007 23 rd RRB J. Schukraft

Phase 3 Installation l Forward detectors(T 0/V 0/FMD) + ITS + TPC ð Installation - testing – pre-commissioning ð most difficult part of ALICE installation µ ITS buried deep inside TPC µ crowded region with tight clearances µ one side blocked by muon absorber µ final services on A side unavailable for testing ITS V 0/T 0/FMD ð most delicate: extremely thin & fragile det. µ tracking volume < 10% X 0 (0 < r < 2. 5 m) equivalent to < 1. 5 mm of Copper !! µ significant static & dynamic deformations ð procedure & tooling was extensively tested µ surface mock-up early 2006 6 Muon absorber A C 24/10/2007 23 rd RRB J. Schukraft

Installation Milestones PHASE Detector Start Finish Apr 2006 April 2008 Initial TPC installation + ITS rails 11. 01. 2007 02. 2007 ITS Barrel (SDD, SSD) + Vacuum (central Be chamber) + Bake-Out 15. 03. 2007 05. 04. 2007 FMD/V 0/T 0 10. 04. 2007 20. 04. 2007 Commissioning TPC + services 21. 04. 2007 15. 06. 2007 SPD installation & integration with ITS barrel 18. 06. 2007 26. 06. 2007 FMD 2 installation 27. 06. 2007 29. 06. 2007 ITS (+ cooling) commissioning 02. 07. 2007 27. 09. 2007 TPC to IP 28. 9. 2007 ITS A-side tests, Service Chariot, Beampipe Fixation 29. 09. 2007 Muon detector installation /commissioning PHASE 3 7 ü ü ü ü ü (C side) 22. 10. 2007 24/10/2007 23 rd RRB J. Schukraft

8 CR 5 08. 03. 2005 Temporary Supports V 0 C T 0 C FMD 3 April 2007 - Forward detectors installed - beam pipe installed & baked-out - SDD & SSD inside TPC - TPC in parking position L. Leistam

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Moving the Pixel Half-Barrels to the IP 12

13 CR 5 08. 03. 2005 Top part of PIXEL detector is installed Mock-up exercise in 2006 L. Leistam

Installation of top half-barrel Inner layer Outerlayer 14

15 CR 5 08. 03. 2005 SSD/SDD are moved over the PIXEL detector Pixel weight transferred to ITS cone FMD 2 installation & beam-pipe fixation L. Leistam

Moving of the ITS over the SPD TPC SPD cone SPD barrel SSD/SDD 16

SPD inside the ITS Absorber 17

18 CR 5 08. 03. 2005 Services are installed & connected using the installation rails Rails for ITS services Rail for ITS Rail for beam pipe L. Leistam

19 CR 5 08. 03. 2005 The TPC is moved into final position L. Leistam

Removing the ITS cover, 3 h before finally moving the TPC to the IP. September 27 th, 2007 1/26/2022 W. Riegler, CERN 20

ITS barrel ready to enter inside TPC 21

Beam-pipe sag during TPC movement to IP Insertion 08. Extraction 15. 08. Insertion 27. 09. Maximum allowed beam-pipe sag: 3 mm = 40 N on central support = 15 MPa stress Beampipe Sag (mm) Today 1. 7 mm Δ [mm] Maximum 2. 25 mm 2 1. 5 Start 1 0. 5 IP 1000 2000 3000 4000 Monitored with lasers, cameras, strain gauges and optical survey… TPC pos. Parking z [mm] 22

C-Side with TPC at IP Forum 04 Oct 2007 L. Musa / P. Glassel 23

Final fixation of the ITS TPC ITS is lowered by a remote control mechanism and fixed to the TPC ITS 24

25 CR 5 08. 03. 2005 Services ready for connection Removal of installation rails L. Leistam

SSD/SDD commissioning A & C sides • • C side final connections A side temporary connections instead of the miniframe SSD A-side tests SDD tests 26

Summary ITS Installation l went essentially smooth w/o major incident or hick-up ð major effort involving many different groups, over several months ð lots of smaller problems discovered & solved µ cooling commissioning, cable & connector problems, positioning & alignment, software/firmware/hardware bugs, ……. l ITS and FWD detectors in good health after installation ð SPD: > 99. 5% working channels SSD: > 97% working channels ð SDD: > 98% working channels FMD: > 99. 9% working channels ð caveat: because of missing services, most but not all functionalities could be tested ! 27 24/10/2007 23 rd RRB J. Schukraft

TOF l Production ð module production : ð Electronic r/o cards: 80 % done (Oct. 6 th) 75 -100 % done l Assembly & Installation ðSupermodule assembly : 11 SMs assembled ð 2 SMs installed Oct 06 l Schedule ð modules completed: Dec 07 ð 9 more SMs ready for installation : Oct 07 µ 7– 10 to be installed before end 2007 ð TOF production complete: Feb 2008 µ installation in January-March 2008 28 TOF Super. Modules in storage 24/10/2007 23 rd RRB J. Schukraft

Muon Arm l Tracking ð Assembly completed ð Installation almost competed µ Station 1, 2, 4, 5 installed µ Station 3: 50% installed (to allow access to St 1/2) Muon Tracking Chambers Stations 4 & 5 ð commissioning (ST 1, ST 2, ST 4) ongoing µ Station 1: - local commissioning completed µ Global R/O commissioning with ALICE DAQ started l Trigger 29 ð service installation nearing completion ð commissioning ongoing 24/10/2007 23 rd RRB J. Schukraft

Muon Trigger Chambers Muon Tracking Chambers Stations 1& 2 30

Other Detector Systems l TPC: long term burn-in of ¼ electronics, no failures ð resistance too large in LV distribution network (poor connectors) => being remade ð production LV power supplies have more noise => solutions under investigation l TRD: production ongoing smoothly ð 1 SM installed & under commissioning, 2 more SM’s at CERN, expect 5 SM’s ready for ’ 08 ð beam test & calibration of 1 SM in November l HMPID: commissioning ongoing ð 1 chamber (2. 5% of HMPID) does not keep HV, under investigation l PHOS: module #1 calibrated with cosmics, installation mid November ð assembly started for module 2 ð funding requested in Russia for modules 4&5 (expect decision spring 2008) l EMCAL: beam test of final design in Sept, support installation early Nov ð production from 2008 to 2010(2011), 1 st SM ready for 2009 l PMD: all parts arrived at CERN, under acceptance test & assembly, installation Feb 2008 l ACORDE cosmic trigger: fully installed, running, providing triggers 31 31/1/2007 LHCC Status Report J. Schukraft

ZDC’s installed on both sides > 100 m inside the tunnel RA 23 RA 27 32

Trigger/DAQ/HLT/DCS/ECS l Installation of all systems in ‘initial configuration’ essentially complete ð 20 -30% for DAQ/HLT, 100% for Trigger/DCS/ECS ð Integration of different Control Systems and Detectors 33 24/10/2007 23 rd RRB J. Schukraft

Detector/DAQ integration DATE V 5, DDL SIU -- DATE RORC delivered ++ RORC Detector algorithms -- Detector framework ready framework APRIL 07 October 07 S S S TT S P S S D D P P P D D D C C D TT R R D D M M M TT M O U U O O FF O N N TT TT K G G K H H M M P P II D D P FF P H M M H O D D O S S C C P P TT 00 V V 00 ZZ D D C C P A A P M C C M D O O D R R D D E E M M C C A A LL Final electronics Final with DDL & & DATE with Trigger with LTU and Trigger TTC Common Data Common Header (TRG info) Header Data format check Data SOD, EOD SOD, Data quality monitor. Data (MOOD) Detect. Algorithms Detect. on. DAQ monitor servers in 34 24/10/2007 23 rd RRB J. Schukraft

Detector use of central DAQ at Point 2 35 24/10/2007 23 rd RRB J. Schukraft

Detector/Trigger integration 36 24/10/2007 23 rd RRB J. Schukraft

HV LV 3 4 TRD TOF HMP PHO CPV MCH MTR FMD PMD ZDC ACO EMC TRG DCS HV HV HV LV LV LV LV MON MON GAS GAS VME VME VME COO COO VEN COO FEE GMS FEE FEE HV HV HV RCK LV LV DSS MON Central effort VME VME PIT V 0 HV GAS GAS FEE T 0 FEE GAS VME standard HV TPC 2 H/W & low level S/W done Basic control with PVSS FSM implemented Configured and ready for operation COO FEE LV LAS VHV HVD MON APD HVD THR FEL IAS MIR GPS PCU LIQ LED MTS THR FEE LVD MOV FEE HAL LED BOM SFM APD TCO VAC CAM GPU PTU CCO LAS NMR SYN CPU GTU TOR NIM RAD DVM TRU 37 semi SPD SDD SSD 1 specific Detector Control September 07

Detector/ECS Integration ECS skeleton ready October APRIL 0707 S P D S S T T T M M S D P R O U U D D C D F O O N N T T K G H M P PI ID D P F T H M 0 O D S C P V Z P A E 0 D M C D O C R A D L E DCS FSM implemented Det. -specific Trigger sequences Calibrations runs defined Calibrations runs implemented in ECS Detect. Algorithms for calibration runs 38 24/10/2007 23 rd RRB J. Schukraft

Computing l Computing Resources ð ALICE deficit in 2008/9 (after recent updates of pledges/requirements) ~ 30 -40% µ Korea has signed the WLCG Mo. U, US participation being defined, T 3’s joining ð Discussions with individual countries to raise their relative contribution to ALICE l usability of available resources now mostly above 90% Disclaimer: This activity report is for the month of September only and may not be representative of long term averages ! 39 24/10/2007 23 rd RRB J. Schukraft

Physics Preparations l Physics with pp at 14 Te. V ð Survey and characterization of typical (‘Minimum Bias’) events µ multiplicity, pt distribution, particle composition, …. µ => tuning of Monte Carlo generators (which differ widely in their predictions) µ => evaluate background & detect. performance ð Specific QCD measurements for which ALICE is particularly well suited µ signals involving PID (eg ‘baryon transport: how are the beam protons decelerated’) µ low x-physics (a la Hera), charm & beauty production at low pt , … l Heavy Ion physics ð like at RHIC, we will get a wealth of significant @ new results already during a 1 st Pb short run at 1/20 design Lumi ð expect first Pb run right after first long pp run Optimization of pixel trigger thresholds to reach multiplicities > 10 -20 x average correction studies for rapidity distribution d. N/dh 40 24/10/2007 23 rd RRB J. Schukraft

Installation Milestones PHASE Detector Muon detector installation /commissioning PHASE 4 Finish Apr 2006 April 2008 Remove Delphi Frame 23. 10. 2007 1 TRD/ 3 TOF installation 24. 10. 2007 04. 11. 2007 EMCAL Frame/PHOS 05. 11. 2007 16. 11. 2007 Miniframe (services A side) 22. 11. 2007 28. 11. 2007 TOF/TRD 29. 11. 2007 05. 12. 2007 Magnet Test + Global Commissioning 06. 12. 2007 21. 12. 2007 V 0 -A/TOF/TRD/PMD January 2008 Cosmic Run February 2008 TOF/TRD 41 Start March 2008 Cosmic Run April 2008 Commissioning and Mobile Shielding Done 21. 05. 2007 start of beam 24/10/2007 23 rd RRB J. Schukraft

Summary l Major Milestones ð ITS installed in good health ! ð Global commissioning started l Biggest Concerns ð Computing resources: large deficit projected for 2009 and beyond ð LV power supply delivery schedule (> April 2008) => partial ITS commissioning & alignment with cosmics 42 24/10/2007 23 rd RRB J. Schukraft