VELO T. Bowcock1 Si Status T.Bowcock for S. Biagi, G.Casse, P. Cooke, M. McCubbin, A. Muir, J. Palacios, C. Parkes, U. Parzefal, G. Patel, J. Phillips.

T. Bowcock 1VELO

Si Status

T.Bowcockfor

S. Biagi, G.Casse, P. Cooke, M. McCubbin, A. Muir, J. Palacios, C. Parkes, U. Parzefal, G. Patel,

J. Phillips S. Walsh, N. Smith, P. Sutcliffe, P. Turner, V.Wright

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Overview

• Production Facilities• Sensors• Hybrids• Modules• Work in Progress

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Production (1)

• Existing “Laboratories removed”– Displaced equipment– Infrastructure cleared– Composites Laboratory retained

• Tender Completed – Principal Contractor Selected

• Construction 4/12– Completion (Handover) April 00

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Production(2)

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Production (3)

• Bonders tendered for– Large area and deep access– 2 K&S 8090’s (?)

• Thermal Camera– Arrrived

• Thermal Chambers• Automatic Glue Handling Equipmen• Storage + …

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Sensors(1)

• PR-02: (Micron)– Additional work on improving the

processing to boost high voltage performance(SW and NG @ Micron)

– 150micron detectors being processed.

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Sensors

• PR-02 new batch– More tightly qualified

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Sensors(2)

• PR-03:– n-strip version of PR-02– Production Meeting 5/12/00

• Details of the “graded” p-spray• 6 masks in all

– Order received placed 11/00. • First delivery 4 months from now• Order completion 7months

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Sensors(3)

• PR-03: will also contain a test with p-bulk– No inversion!

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Sensors(4)

• PR-04: Study of Modified phi - p-strip design complete – Same (similar) bondpad layout as r

detector for PR-02– Possible– 2-3 months of work

• on hold

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Sensors(5)

• PR-05:– Discussion with Hamamatsu

underway for production of compatible n-strip detectors

• Investigative Quotations – 150 detectors

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Sensors(6)

• Laser Rig– 5 micron spot– Multiwavelength– Visual Focus– Automated stage

• (not installed)

– Operational

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Sensors(7)

• Side View of Laser Rig

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Sensors(8)

• Cosmic Ray Assembly– 2 double sided detectors VA2 r/o– Modules now operational

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Sensors(9)

• Irradiation 6/11/00 to 9/11/00– 3 r detectors

• Pr-02 1968-17 300 micron         Oxygenated • Pr-02 1976-16 300 micron         Non Oxygenated. • Pr-02 1968-19 300 micron         Oxygenated

– 3 phi detectors• Pr-02 1968-19 300 micron         Oxygenated • Pr-02 1832-10 200 micron         Oxygenated • Pr-02 1976-19 300 micron         Oxygenated

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Sensors(10)

• R-detectors– Irradiated with strips facing beam

• Max fluence 4.81014 (6% error)

• Ph-detectors – Strips facing upwards

• Max fluence 4.61014 (6% error)

• Alignment 1mm– http://www.ph.liv.ac.uk/lhcb

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Sensors(11)

• Detectors due for shipping to Liverpool this week– Meanwhile known detectors being

tested• Laser system cross-calibrated• Test of non-uniformly irradiated (parallel

geometry detectors)

– Analysis will begin on receipt

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Hybrid(1)

• Prototype Hybrid• IDE production

– Electronic layout– Connecter layout

• Design features– Multi-chip– Multi-technology

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Hybrid(2)

• Two versions in production – FR4

• Before the December workshop

– Alumina (Ceramic)• After Christmas

• Support cards(?)

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Module(1)

• Original Concept

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Module(2)

• Nov(00)

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Module(3)

• Prototype

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Module(4)

• Alignment Mechanism

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Module(5)

• Thermal Model

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Module(6)

• Thermal Model to compare with FEA

Ceramic Substrate(Beryllia)

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Module(7)

• Baseline hybrid– Beryllia/kapton with Titanium joints– Cheaper and safer option Aluminium

nitride• Under order

• Cheaper and more stable– Carbon fibre

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Module(8)

• From Composites Lab– Same technology as support– Multilayer cf– Production cheap

• Dyconex

– Substrate prototype• High thermal conductivity• Very low CTE

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Module(9)

• Carbon Fibre support also for CDF Layer 00

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Module(10)