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Schedule issues

Schedule issues. Justin Greenhalgh This presentation will be at http://www.eng-external.rl.ac.uk/cms-gen/Project_papers under EE356. Agenda outline. Part one - introductory comments (Justin) Part two – comments from Paul (crystals) Brian (supercrystals) Lucy (Dee lab)

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Schedule issues

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  1. Schedule issues Justin Greenhalgh This presentation will be at http://www.eng-external.rl.ac.uk/cms-gen/Project_papers under EE356

  2. Agenda outline • Part one - introductory comments (Justin) • Part two – comments from • Paul (crystals) • Brian (supercrystals) • Lucy (Dee lab) • Jordan (Electronics) • Ken (Commission, test, integration) • Part three – a schedule? (Justin) • Part four – other issues (Austin, Dave)

  3. (Part 1) • Attempt to reach a coherent picture • But things are changing fast…

  4. Key issues connected with crystals • Supercrystal production rate • Deliveries of parts (esp crystals - PAUL) • Rate of work in RC (BRIAN) • Speed to assemble a Dee: • Speed to assemble the SC onto a Dee (LUCY) • Speed to assemble the electronics onto a Dee (JORDAN) • Dee commissioning, test, integration (KEN)

  5. Not to forget… • Services • Integration activities (Dee fitting to HE, etc) • Etc etc

  6. Basis of estimates • John Connolly (with Brian and Tony) developed estimates for SCs • We have more experience now, but beware: • Based on barrel • Do not forget start-up times • Who prepares the estimates? • Justin (beware) • Whoever is going to do it (much safer)

  7. (Part 2) ECAL planning, main milestones, v33.1/ new profile for EE crystal production P Lecoq SC build estimates B Smith Dee mechanical assembly profiles L Linssen  Profile for EE prototype and final electronics/ Dee electronics integration J Nash Dee installation and commissioning in CMS K Bell

  8. (Part 3) • An attempt at a coherent schedule • Done last night, BEFORE I had seen most of what has just been said – but after discussion with Jordan and email from Lucy, and having seen Paul’s slides from Tuesday. • What’s involved • Assumptions – what would happen if… • “Scenario 4” schedule • excludes comm, test, integration • Caveats

  9. What’s involved? • SC - See Brian’s talk • Dee pre-assembly (NOT dependent on SC) • Fit Dees 1+ 2 together • Fit cooling pipes to BP • Fit Env shield to Dee • Test OES + BP cooling systems (Arbitrary split…)

  10. Dee lab • SC, FOM, HV cabling • Fitting the inner and front moderators (the front moderator may be quite an awkward thing to assemble around the umbilicals) • Fitting the piping for the power cooling (which will probably go in after the front and inner moderators) • fitting any required thermal shield • fitting the low voltage cabling layer • fit the support rails for combs and mothercards • fitting the mothercards which includes wiring them to the SC with any knitting required • fitting the combs that support the cooling bars, and the cooling bars • prefit the cooled rear moderator • testing the power + rear moderator cooling circuits • remove the cooled rear moderator Sequence??

  11. Integration centre • Integration lab tasks: • fitting the VFE, FE, and regulator cards • fitting the fibres • system tests that need, or may need, access to the electronics • Integration lab mechanical tasks • refit the cooled rear moderator • retest piping (hope nothing leaks!!!) • retest system (cooling + electrical)

  12. Crystal numbers

  13. Assumptions – crystal delivery • EE crystals in production quantities in Q4 of 2005 AT THE RCs • Some deliveries sooner than that to allow • Refinement of production processes • Staff training • Staff continuity (we don’t lose Brian!) • NO STOCK at RCs • Uniform delivery over the quarter – ideally, front-loaded.

  14. Assumptions – SC production rate • Slow for the first year, but that gives time to fully develop all processes, buy tooling, etc. • Transfer of expertise to second RC before production quantities arrive • Ramp abruptly from 2/week to 5/week at both RC. • No point in going faster because of crystal production rate limits. • Partial SCs keep up

  15. Crystal delivery + SC production Jump

  16. Times – Dee lab + integration centre • Learning process • 4 months in the Dee lab post-learning • 4/day = 20/week, 8 weeks for 160 SC • Dee has 138 full and 18 partial = 156 SC/Dee • ==>2 months to assemble SC • 2 months for mechanical bits of mechatronics • 2 months Integration centre (B 867) • 1 month for electronic bits (assumes wires etc pre-cut using a mockup) • 2- 4 weeks retest + cooled rear mod Lucy Justin Jordan

  17. Scenario 4 100 100 300 450 3200 per quarter………..

  18. BEWARE • How to build up trained staff quickly enough in the RC? • There is little room for slack or contingency • EQUALS RISK (time and money) • This is broad brush planning - the devil may be in the detail as regards cost or time • So detailed planning is required by the folk who will do it. • Delivery at RC, not from Bogoroditsk • No stock at RC (unrealistic) • Costs have been ignored

  19. (Part 4) Cabling/service installation deadlines A Ball E0' and Dee beam tests D Cockerill Conclusions and action plan All

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