VELO Module Mid-Term Review T. Bowcock 11 October, 2006.

VELO Module Mid-Term Review

T. Bowcock11 October, 2006

Themis Bowcock - MTR

Overview

Introduction Why? Terms of reference Timeline

Project Summary


IntroductionWhy?

Consolidate and review production STOP before we go too far Produce a revised baseline procedures Larger statistics from PRR

Identify new problems (fix!) Public record Refereed (Tim Jones)

Input of experience from other experiments


Introduction:Terms of reference

Review documentation checklists, and idiot guides

Review data to identify problems Compile list of issues that need to be

addressed Identify priority items that must be

addressed before production restarted Produce short written report to the

Technical Board of LHCb


IntroductionTimeline

11th Oct: MTR at Liverpool – Full day

12th Oct: Summary of MTR with CERN VELO management

16th Oct: Written Report of MTR to TB

… Restart production (if possible)


Project: Resources

PPARC (1998-2006) ~1.1MChf hardware including R&D

42 Si Modules and cables (no large number spares) Note PPARC not paying for FE Chips

R&D ~250kChf or 50kCHf/yr to 2005 Limited ability to produce early prototypes and

modules Liverpool/HEFCE and JIF

Liverpool Semiconductor Detector Centre infrastrure

Limited funding from Department ~50kChf


Project: Staff

Name Responsibility Activity

Themis Bowcock

Group Leader

John Carroll Project Engineer Assembly Testing Metrology

Torkjell Huse Assembly Qualification

Gianluigi Casse Qualification

Rolf Oldeman Qualification

Mark Tobin Software CERN

Peter Cooke Production

Workshop Staff Production Hybrids/Bonding

Phil Turner Testing

Tara Shears Testing

Lisa Dwyer Testing CERN

Anthony Affolder Testing

Peter Sutcliffe Testing/Metrology

Name Responsibility Activity

David Hutchcroft Software Coordinator Software Testing

David Jones Software Testing

Kurt Rinnert Software Testing

Tony SmithProduction

CoordinatorHybrids

Ashley Greenall Hybrids

Geoff Southern Hybrids

Dave Muskett Testing/Metrology Assembly

Mike Wormald Hybrids/Bonding Assembly

Mark Whitley Hybrids/Bonding

Girish Patel Quality Assurance QA

Karol Hennessy* Software Qualification

Mike Lockwood Operations Assembly

* University College Dublin


Project: Staff

6%

8%

10%

23%

15%

19%

13%

2% 4%Management

Production Parts

Assembly

Testing/Metrology

Hybrids/Bonding

Qualification

Software

Operations

QA


Project: Oversight


Project:Management

Gantt Has been replaced as we move into quasi

DC operation Replaced by detailed time/worksheet

optimized for throughput Areas of competance

Weekly and Daily Meetings e-log (well used)

Risk Register


Geometry (42 modules R&Phi) R sensors must be positioned within 20 um (gauss

sigma) in X and Y of the nominal position relative to the base.

R sensors must be positioned within 100 um (gauss sigma) in Z of the nominal position relative to the base.

Phi sensors must fit within tolerances given by RF foil. The positioning has no further requirements, but the

actual position must be known to an accuracy of about 10 um relative to the R sensor.

Addition of constraint system See metrology discussion

Project:Modules


Project: ModuleSpecification

Temperature The sensors operate at a nominal

operational temperature of ~ -5° C.


Project: ModuleSpecification

Outgassing outgas_one_module < 1e-4 mbar liter

/ s after approx 4 hours in vacuum.


Project: Module Specification

Electrical The module should be designed to

sustain up to 600 V in vacuum @ < 1e-4mbar.

Channels lost Sensors (20) Final module max 25/side


Summary

Project approximately at mid-point Are we doing the right things? What more can we do to improve? Are we meeting our goals? Today…


Summary:Today

Session I: QA & documentation Session II: Data Summaries Session III:

Logistics,Infrastructure… Session IV: Discussion

VELO Module Mid-Term Review T. Bowcock 11 October, 2006.

Documents

Transcript of VELO Module Mid-Term Review T. Bowcock 11 October, 2006.