1. DoE Review June 6-7, 2000 Current Detector Configuration June 6, 2000  Solenoid, Central Preshower installed in central bore  A-layer MDTs installed on inner faces of end irons  Central muon system installed, being commissioned  South end calorimeter, end irons on sidewalk  North and south trusses in Hi Bay, being prepped for move to sidewalk  Central iron, north calorimeter in open positions to allow access  Shield wall up

2. DoE Review June 6-7, 2000 Current Detector Configuration June 6, 2000  South end calorimeter, end irons on sidewalk  A-layer MDTs installed on faces of end irons  Commissioning Level 1 trigger, muon system, online, silicon front-end, solenoid

3. DoE Review June 6-7, 2000 Install Fiber Tracker in Solenoid June 16-29, 2000  Fiber Tracker being installed in central bore  North A-layer pixel sheet mounted on shield wall  Commissioning of DAQ, online, central muon system, etc. continues

4. DoE Review June 6-7, 2000 Move Platform West, Pick Up End Irons July 11-28, 2000  Fiber Tracker installed, south end calorimeter back in place on platform  Platform moves west to pick up two end irons  Detector buttoned up for move  Commissioning interrupted until platform returns east (services disconnected)

5. DoE Review June 6-7, 2000 Move Platform West, Pick Up End Irons July 11-28, 2000  Platform moves west to pick up two end irons  Movable Counting House moves with detector during pick up  Assembled north A-layer pixel plane remains on shield wall

6. DoE Review June 6-7, 2000 North & South Trusses Move to Sidewalk July 31 – August 25, 2000  Platform returns to east position with end irons installed  North & south trusses, shielding brought down to sidewalks from Hi Bay, assembled  Detector remains buttoned up until trusses are down  Cabling of Fiber Tracker begins after south truss is in place  Platform services reconnected, commissioning resumes

7. DoE Review June 6-7, 2000 North & South Trusses Move to Sidewalk July 31 – August 25, 2000  Platform returns to east position with end irons installed  North & south trusses brought down to sidewalks  South calorimeter, end iron opens to allow cabling of Fiber Tracker  A-layer north pixel sheet mounted on shield wall, awaits installation

8. DoE Review June 6-7, 2000 A- & C-layer Pixels & MDTs Installed November 10, 2000  A- and C-layer detectors mounted  SMT-S installed, hooked up – SMT-N being installed  Trusses ready to install in Collision Hall  South calorimeter, end irons open to allow access to inter-cryostat region  Commissioning of CFT, SMT, Forward and Central Muon, attendant readout

9. DoE Review June 6-7, 2000 Trusses Installed in Collision Hall Nov 20 – Dec 11, 2000  North & south ends of shield wall removed, blocks stacked in Hi Bay  Loaded trusses rolled into Collision Hall, surveyed  Platform remains in Assembly Hall, rolled in after trusses in place  Commissioning of detectors on platform continues

10. DoE Review June 6-7, 2000 Trusses Installed in Collision Hall Nov 20 – Dec 11, 2000  Mounting of B-layer MDTs on outer faces of end irons near completion  North B-layer pixel plane assembled on shield wall  End cryostats/irons open as logistics allow  Cosmic ray commissioning & triggering using SMT, CFT, and muon

11. DoE Review June 6-7, 2000 Detector Rolled in and Hooked Up February 16, 2001  Platform rolled in to meet trusses  Full detector in final closed position: hooked up, ready for beam  Shield wall back up  Movable Counting House travels with detector, cable bridge down  Commissioning with cosmic rays continues until beam is delivered (March 1, 2001)

12. DoE Review June 6-7, 2000 Access to Detector in Collision Hall Closed Position - Data-TakingOpen Position - Detector Access Shielding retracted South calorimeter open North B-layer pixels open South end iron open North end iron closed

13. DoE Review June 6-7, 2000 Forward Muon B-Layer Installation May, 2000  End irons moved toward center of Assembly Pit to allow access for B-layer installation/surveying  Commissioning continues

14. DoE Review June 6-7, 2000 D0 Commissioning Timeline Commissioning/Integration Goals 2000 2001 J F M A M J J A S O N D J F M D Run II begins: Mar 1, 2001 Roll in No LHe LAr Beam- ready #1 #3 #2 DAQ/online system running in user mode Integration Goal #1: dual muon crates, initial muon triggering/filtering, ship data to farm, run reconstruction, online event display Begin full central muon system, integrate Level 2 muon trigger at DAB test stand Silicon front-end installed/commissioned Forward muon C-layer MDTs/pixels installed/commissioned #6 #5 Forward muon A&B layer MDTs/pixels installed/commissioned Integration Goal #2: Initial triggering on L1 CFT/CPS, begin linking tracks in CFT/CPS/CMuon, begin Level 2 trigger integration Half of CFT, CPS hooked up, checked out #4 #9 #10 #11 Integration Goal #4: Full detector in steady- state Cosmic Ray Commissioning SMT, CAL fully added to commissioning chain, exercise full triggering with all major systems Integration Goal #3: Add Central Calorimeter to commissioning stream, most major systems being commissioned #8 #7

15. DoE Review June 6-7, 2000 Trusses Assembled on North & South Sidewalks July 21 – August 25, 2000  Detector returns to east position with end irons installed  Trusses brought down from Hi Bay to sidewalks  Central irons, calorimeters remain closed for movement of trusses  Hookup of Fiber Tracker begins after south truss is in position  Commissioning resumes, begin integration of CFT

16. DoE Review June 6-7, 2000 Current Detector Configuration Phase I  A-layer MDTs, Pixels being mounted, surveyed onto faces of end irons  C-layer truss and shielding has arrived in Hi-Bay, being dressed  Remainder of detector remains open for access

17. DoE Review June 6-7, 2000 Current Detector Configuration  Commissioning continues, using Central Muon as prototype system: u Multi-crate readout of full central muon system u Event monitoring, crate control, steady DAQ running, filtering u Exercise reconstruction, online event display (on cosmic ray muons)

18. DoE Review June 6-7, 2000 Forward Muon B-Layer Installation May-June, 2000  A-layer planes installed  B-layer MDTs, Pixels being mounted, surveyed onto faces of end irons  C-layer trusses and shielding continue to be dressed in Hi-Bay

19. DoE Review June 6-7, 2000 Install Fiber Tracker in Solenoid May, 2000  Fiber Tracker + Cart/I-Beam system lowered into gap between South End Calorimeter and Central Calorimeter  Rolled into solenoid bore along I-Beam Fiber Tracker Cart System

20. DoE Review June 6-7, 2000 EMCs Installed in Collision Hall December 11, 2000 - January 11, 2001  Shield wall is broken down, moved to now free space in Hi-Bay  North and South C-layer trusses/shields, having been assembled on sidewalk, rolled into Collision Hall - surveyed into place  Detector will be rolled into place to meet trusses

21. DoE Review June 6-7, 2000 EMCs Installed in Collision Hall  Full Cosmic Ray Commissioning of all systems continues during most of this period  End irons, calorimeters can be opened for access

22. DoE Review June 6-7, 2000 Detector Rolled In, Hooked Up Phase III  Detector installed in compact space  Access to internal tracking detectors, end muon detector planes must be carefully coordinated

23. DoE Review June 6-7, 2000 South EMC Truss Moves to South Sidewalk November 29- December 5, 1999  South C-layer truss moves to south sidewalk  EMCs, shielding re-assembled on sidewalk to prepare for rolling in

24. DoE Review June 6-7, 2000 South EMC Truss Moves to South Sidewalk November 29- December 5, 1999  South C-layer truss moves to south sidewalk in two pieces, reassembled  Preparing to take down shield wall for roll in

25. DoE Review June 6-7, 2000 The DØ Upgrade Tracking System Charged Particle Momentum Resolution  p T /p T ~ 5% @ p T = 10 GeV/c