1. 1 Program Frank Linde (45’) Marcel Vreeswijk (45’) Jan Spelt (45’) Robert Hart (15’) Tours: 14:00-15:00 CAVE (60’) 15:00-16:30 BOL-room (60’) Site Review @ NIKHEF, 10-July-2001 Lunch (13:00-13:45) 16:30-19:00 Discussion 9:30-10:30 Introduction & Movie 10:30-11:30 BOL-0/1 11:30-12:30 BOL-2/96 12:30-13:00 Database

2. 2 End Cap Toroids Vacuum Vessels (Schelde Exotech) First Vessel: Assembly in progress to CERN: fall 2001 (6 months delay) Second Vessel: Machining in progress to CERN: spring 2002 (on time) Coil Winding (HMA power systems) Conductor delivery problematic; other materials & tools in place Company claims cost overruns

3. 3 Muon-Spectrometer: Alignment Alignment Key issue: RASNIK 3-point monitor Status: Sensors delivered to MDT sites; DAQ prototyped Outstanding: Radiation tolerance of the multiplexers (first test: ok!) Difficulties: Cost (mechanics!) & lens quality (finally understood!) Many other interested parties MasterMuxMasterMux USA15MuxUSA15Mux On-chamberOff-chamber mask CCD lens multiplexer 25 multiplexers on order

4. 4 Muon-Spectrometer: Detector Control Detector control (NIKHEF/CERN R&D collaboration) Key issue: Modular: CAN CPU with many sensor types precise Hall B-sensors; cheap T-sensors, … Status: Being delivered to MDT sites Outstanding: Radiation tolerance of the CAN CPUs Used also by: D0, Saclay, CMS(?), LAr (H8), … T-sensors 30 max  T  0.2 o C B-sensors  B/B  10 -4 CAN NetworkCAN Network digital busses to MDT front-end extra bus (insurance) On-chamber 25 DCS nodes on order

5. 5 (Muon-Spectrometer:) Read-Out Driver Read-Out Driver Difficulty: Cost (ROD+CSM doubles CORE) Status: R&D phase Test bed: cosmic ray set-up Dec/01 1.28 Gbit/s S-Link to ROB 6 x CSM-Link TDC 1 TDC 18 CSM 18 x TDC 1 TDC 18 CSM 18 x MDT chambers MROD (NIKHEF) USA15 ROB Surface ROD or ROB “IN” ROD or ROB “OUT” CSMCSM

6. 6 ATLAS efforts on realization of CORE commitments (We realize our participation in ATLAS physics studies is not in line with our ambition ………)  Muon Spectrometer  End cap Toroids  Vacuum vessels: progressing well (minor delays)  Coil winding: company claims cost overruns  MDT chamber construction:  R&D basically completed (and it took a lot of time)  Huge “serial” production effort in 2001-2005  Alignment, Detector Control & MDT Read-Out Drivers  Completed or near completion  Point of concern: radiation tolerance  Silicon Tracker:  Design closure urgently required (else we get squeezed)  Significant assembly & test effort in 2002-2003/4  Trigger & DAQ:  Many R&D contributions; synergy with MDT-Read-Out Driver project Summary