1 Program Introduction MDT Chamber Production Silicon Tracker Project Software & Physics Frank Linde (15’) Marcel Vreeswijk (25’) Nigel Hessey (25’) Stan Bentvelsen (30’) Laboratory Tour: –MDT production line (20’) –SCT area (20’) Lunch Peter NIKHEF, 22-June-2001

2 ATLAS/D0 in Amsterdam & Nijmegen ATLAS contributions  Muon Spectrometer (hardware)  End Cap Toroids  MDT Chambers  Alignment  Detector Control  MDT Read-Out Driver  Silicon Tracker (hardware)  100 modules  Disc design  Assembly & test of one complete end cap  Trigger & DAQ (hard- & software)  R&D participation ATLASD0 Staff 9 4 PostDoc 1 1 PhD 7 7 Students 1 1 Technical support: very good Medipix DataGRID (G measurement)

3 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 Negotiations on claimed cost overruns by the company ongoing

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

5 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  CAN NetworkCAN Network digital busses to MDT front-end extra bus (insurance) On-chamber

6 (Muon-Spectrometer:) Read-Out Driver Read-Out Driver Difficulty: Cost (ROD+CSM doubles CORE) Status: R&D phase Test bed: cosmic ray set-up 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

7 Trigger & DAQ design & studies of MDT-ROD/ROS MDT-ROD construction spreadsheet & computer model: ROBs, networks & LVL2 processor farm November 2001: Trigger, DAQ & DCS NIKHEF online software DCS software {

8 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  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 /4  Trigger & DAQ:  Many R&D contributions; synergy with MDT-Read-Out Driver project Summary