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Material Procurement

Material Procurement Construction material – All the material has been ordered with some spare (10%) Delivered material PNPI – M3R4 – Panels 70% - HV bars 100% - FR4 frames 100% PNPI – M2R4 – Panels 20% - HV bars 100% - FR4 frames 100%

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Material Procurement

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  1. Material Procurement • Construction material– All the material has been ordered with some spare (10%) • Delivered material • PNPI – M3R4 – Panels 70% - HV bars 100% - FR4 frames 100% • PNPI – M2R4 – Panels 20% - HV bars 100% - FR4 frames 100% • PNPI – M4R4 – Panels 0% - HV bars 90% - FR4 frames 0% • CERN – Panels 60% • INFN – M3R3 completed – M2R3 ~ completed – M5R4 Panels 20% • HV bars ~ 40% FR4 frames 100% Other elements 100% • M1 panels 0% • Faraday cage– Final FEE board dimensions – M3R3 ready – All the others need the preparation of drawings (M3R4-M2R3-M5R4+....) • Honeycomb panels - We got samples of M1R3/R4 regions, cut at the right dimension and a quotation. Early 2005 we should go for the purchase and the production.

  2. Panel production • A strict monitoring of the panel quality and of the production rate is performed • with regular visits (every two weeks) to the company and with checks at the production site. • This is certainly the most critical item on the chamber and the production has to be followed closely. • The required planarity is very demanding (+- 90 micron) especially on the largest panels (400 x 1600 mm2) • A rate of 250/month is mandatory to match the chamber production in the various sites (see next plots). • To monitor the production yield a data base on each INFN site is operational. • This tool helps also to have a more efficient chamber production. • The yield appears quite good: approximately 90% . • We are also developing a tool to recover non planar panels (especially the gold plated one, which are the most expensive).

  3. Panels needed at production sites according to official plan

  4. Preliminary plans to equip and to install chambers • Once the chamber have been tested with radioactive source, FEE electronics, LV and Faraday Cage must be assembled on chamber (and tested). • Part of this work will be done at the production sites (at LNF, for whole INFN, at PNPI and at CERN). • Probably, for PNPI chambers, electronics will be assembled at CERN. • The first chambers will be equipped as soon the CARDIAC boards will be available. • Shipping of INFN chambers to CERN: in special trolleys with shock absorbers stocked in a container (see photo). • Shipping of PNPI chambers: in wooden boxes (CSC-CMS like) • Reception at CERN : about 200 m2 available (not so much) • Gas flux – last test with HV – Installation on the detector • We have yet to deploy a detailed plan for this part of the installation: • check the time and the personnel needed; • logistics at CERN and the infrastructure needed (gas, HV, etc...) • setup the procedures and the team for the installation on the detector (integration among various labs)

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