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Alice ITS L5,6 Integration

• End wheels and local services design– services layout on the end wheels: patch panels, routing, cooling and

qualification– End wheels design wrt services requirements

• Integration tool design, production, procedures:– Fixing features on wheels (pads, rubys): positioning, fixing – Staves handling– Staves insertion – Staves position measuring– Qualification– Half layer handling, half-L5 and L6 coupling– L5, L6 mockup(s) – Mechanical integration of L5,6 staves at Cern

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First models of integration tools

Staves fixing features: single stave replacement capability

Half layer / half barrel measurement:Procedure for measuring the staves position wrt half-layer referencesReferences for half layers / half barrel measurement wrt Alice reference systemTest of optical probe as available at Cern metrology

Sezione di PadovaRisorse di personale

End wheel services layout

1st iteration of end-wheels and services layout.

End-wheels:• staves insertion/maintenance• pigtails insertion/extraction• Layer/barrel stiffness

Cern design

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Alice ITS L5,6 Integration - 2014 plan

• Define integration tool design: fixing pad jig, stave integration• L5,6 half-barrel mock-up• Staves and wheels measurement strategies and tools• Services requirements, schematics and layout• Services assembly procedures and qualifications

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Alice ITS L5,6 Integration procedure– Fixing features on wheels (pads, rubys): positioning, fixing

• Fix # pads/rubys to jig• Glue disposal• Mask positioning, • Reference jig measuring• Curing• Jig removal and checks

– Staves handling and insertion• stave shipping box/fixtures• Positioning on handling table• Acceptance tests• Fix to integration tool PINZE• Lift stave, positioning, checks, fixing, • tool removal, checks, • Services connections, fastening• Services joints qualification

– Staves position measuring• Contact measures on stave ends• Optical measures as possivle

– Half layer handling, half-L5 and L6 coupling