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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 Jenni @ NIKHEF, 22-June-2001.

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program
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 Jenni @ NIKHEF, 22-June-2001

atlas d0 in amsterdam nijmegen
ATLAS/D0 in Amsterdam & Nijmegen

Medipix

DataGRID

(G measurement)

ATLASD0

Staff 9 4

PostDoc 1 1

PhD 7 7

Students 1 1

Technical support: very good

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
end cap toroids
End Cap Toroids

Coil Winding

(HMA power systems)

Conductor delivery problematic; other materials & tools in place

Negotiations on claimed cost overruns by the company ongoing

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)

muon spectrometer alignment
Muon-Spectrometer: Alignment

On-chamber

Off-chamber

MasterMux

USA15Mux

CCD

mask

multiplexer

lens

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

muon spectrometer detector control
Muon-Spectrometer: Detector Control

On-chamber

CAN Network

T-sensors

30 max

T0.2 oC

B-sensors

B/B10-4

extra bus

(insurance)

digital busses to MDT front-end

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), …

muon spectrometer read out driver
(Muon-Spectrometer:) Read-Out Driver

MDT chambers

USA15

Surface

TDC 1

TDC 1

CSM

CSM

MROD

(NIKHEF)

ROB

CSM-Link

18 x

18 x

1.28 Gbit/s

S-Link to ROB

TDC 18

TDC 18

6 x

CSM-Link

ROD or ROB “OUT”

CSM

ROD or ROB “IN”

Read-Out Driver

Difficulty: Cost (ROD+CSM doubles CORE)

Status: R&D phase

Test bed: cosmic ray set-up

slide7

Trigger & DAQ

{

spreadsheet & computer model:

ROBs, networks & LVL2 processor farm

design & studies of

MDT-ROD/ROS

MDT-ROD construction

online software

DCS software

November 2001: Trigger, DAQ & DCS week @ NIKHEF

summary
Summary
  • 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
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