1

ProgramProgramIntroduction

MDT Chamber ProductionSilicon 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 Jenni @ NIKHEF, 22-June-2001

2

ATLAS/D0 in Amsterdam & ATLAS/D0 in Amsterdam & NijmegenNijmegen

ATLAS contributions

Muon Spectrometer (hardware)End Cap ToroidsMDT ChambersAlignmentDetector ControlMDT Read-Out Driver

Silicon Tracker (hardware)100 modulesDisc designAssembly & test of one complete end cap

Trigger & DAQ (hard- & software)R&D participation

ATLAS D0Staff 9 4PostDoc 1 1PhD 7 7Students 1 1Technical support: very good

MedipixDataGRID

(G measurement)

3

End Cap ToroidsEnd 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: Muon-Spectrometer: AlignmentAlignment

Alignment

Key issue: RASNIK 3-point monitorStatus: Sensors delivered to MDT sites; DAQ prototypedOutstanding: Radiation tolerance of the multiplexersDifficulties: Cost (mechanics!) & lens quality

Many other interested parties M

asterMux

USA15Mux

On-chamber Off-chamber

mask

CCD

lensmultiplexer

5

Muon-Spectrometer: Detector Muon-Spectrometer: Detector ControlControl

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 sitesOutstanding: Radiation tolerance of the CAN CPUs

Used also by: D0, Saclay,

CMS(?), LAr (H8), …

T-sensors30 max

T0.2 oCB-sensorsB/B10-4

CAN

Network

digital busses to MDT front-end

extra bus(insuranc

e)

On-chamber

6

(Muon-Spectrometer:)(Muon-Spectrometer:) Read-Out DriverRead-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

CSM-Link

TDC 1

TDC 18

CSM18 x

TDC 1

TDC 18

CSM18 x

MDT chambers

MROD(NIKHEF)

USA15

ROB

Surface

ROD or ROB “IN”

ROD or ROB “OUT”CSM

7

Trigger & DAQTrigger & DAQ

design & studies of MDT-ROD/ROS

MDT-ROD construction

spreadsheet & computer

model:

ROBs, networks & LVL2

processor farm

November 2001: Trigger, DAQ & DCS week @ NIKHEF

online softwareDCS 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 SpectrometerEnd 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 DriversCompleted or near completionPoint 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

SummarySummary