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GDE Report and Discussion of Costs

GDE Report and Discussion of Costs. Barry Barish Caltech / GDE 6-Nov-06. Outline. Progress Since Last Mtg and Plans to RDR Vancouver first costing – July 06 Design Cost Optimization for RDR (Valencia) The RDR Outline and Plans for Writing GDE Coordination of Global R&D Program

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GDE Report and Discussion of Costs

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  1. GDE Report and Discussion of Costs Barry Barish Caltech / GDE 6-Nov-06 Global Design Effort

  2. Outline • Progress Since Last Mtg and Plans to RDR • Vancouver first costing – July 06 • Design Cost Optimization for RDR (Valencia) • The RDR Outline and Plans for Writing • GDE Coordination of Global R&D Program • Proposal for 2nd Linear Collider Accelerator School • GDE Response to MAC Report – N. Walker • Planning for the Post RDR Period - B. Foster • Common Fund – B. Barish Global Design Effort

  3. Baseline to a RDR 2006 July Dec Jan Frascati Bangalore Vancouver Valencia Freeze Configuration Organize for RDR Review Design/Cost Methodology Review Initial Design / Cost Review Final Design / Cost RDR Document Design and Costing Preliminary RDR Released Global Design Effort

  4. RDR Cost Estimating • 500 GeV BCD machine + “essentials” for 1 TeV • Follow ITER “Value” & CERN “CORE” model for International Projects • Provides basic agreed to costs [common “value” + in-house labor (man-hr)] • RDR will provide information for translation into any country’s cost estimating metric, e.g. Basis of Estimate => contingency estimate, in-house labor, G&A, escalation, R&D, pre-construction, commissioning, etc. • Assumes a 7 year construction phase Global Design Effort

  5. ILC Cost Estimate • Based on a call for world-wide tender: lowest reasonable price for required quality • Classes of items in cost estimate: • Site-Specific (separate estimates for each site) • Conventional – global capability (single world est.) High Tech – cavities, cryomodules, regional estimates • Cost Engineers will determine how to combine and present multiple estimates • WBS ; WBS Dictionary; Costing Guidelines are mature enough - cost estimating is underway Global Design Effort

  6. WBS Level of Detail - Cryogenics % LHC refrig. single units Global Design Effort

  7. Cost Roll-ups e- e+ damping RTML main BDS source source rings linac Area Systems Global Design Effort

  8. Vancouver Cost Data Global Design Effort

  9. Costs by Area System Global Design Effort

  10. Costs by Technical & Global System Global Design Effort

  11. Vancouver  Valencia Design Scope CostReduction Component Costs Physics Scope No big ticket items! Just lots of 1% effects Global Design Effort

  12. Design Changes Under Consideration Global Design Effort

  13. Vancouver Costs for BDS • Cost drivers • CF&S • Magnet system • Vacuum system • Installation • Dumps & Collimators Total Cost Additional costs for IR20 and IR2 Global Design Effort

  14. 2/20 mrad  14/14 mrad • Motivation • Reduce costs • 2 mrad beam line expensive, risky, especially extraction line • Common collider hall • Advantages • Improved radiation conditions in the extraction lines • Better performance of downstream diagnostics • Easier design and operation of extraction optics and magnets • Reduced back scattering from extraction line elements • Disadvantages • Impact on physics (appears minor at present). • Simpler incoming beam optics • R&D on small crossing angles will continue as alternative Global Design Effort

  15. Muon walls • Purpose: • Personnel Protection: Limit dose rates in one IR from other IR • Physics: Reduce the muon background in the detectors Scheme of a muon wall installed in a tunnel widening which provide passage around the wall Baseline configuration: 18m and 9m walls in each beamline Global Design Effort

  16. Reduced Muon Walls • Considerations • The estimation of 0.1% beam halo population is conservative and not supported by any simulations • The min muon wall for personnel protection is 5m • Detector can tolerate higher muon flux. • Cost of long muon spoilers is substantial, dominated by material cost • Alternatives – muon spoilers need study • The caverns will be built for full length walls, allowing upgrade if higher muons flux would be measured • MDI panel accepted this change. Global Design Effort

  17. On-surface Detector Assembly • Vancouver WBS considered the underground halls sized at 32m (W) x 72m (L) each to allow underground assembly of the largest considered detector. • Conventional Facilities Schedule gives detector hall is ready for detector assembly 5 yrs from project start • If so, cannot fit our goal of “7years until first beam” and “8years until physics run” • Surface assembly allows to save 2-2.5 years and allows to fit into this goal • The collider hall size may be smaller (~40-50%) in this case • A building on surface is needed, but savings may be still substantial • Optimization needs to be done Global Design Effort

  18. On-surface assembly • CMS assembly approach • Assembled on the surface in parallel with underground work • Allows pre-commissioning before lowering • Lowering using dedicated heavy lifting equipment • Potential for big time saving • Reduce size of underground hall required Global Design Effort

  19. MDI Related Design Changes • Some cost / performance design changes would affect physics performance or reach. We are trying to pick items without major impact or are reversible changes • Energy reach: maintain 500 GeV (but redefine performance at that energy) • Peak Luminosity; (reduce for initial running; but, upgradeable) • Two detectors preserved, but one beam line + push-pull • These are being fully discussed and coordinated with the Physics Community • MDI Panel; WWS; Physics Parameter Group Global Design Effort

  20. Cost details of new 14/14 baseline Should we go to a single IR and push pull system and save 30% of BCD costs? Updates from CF&S Magnets to be included Global Design Effort

  21. Push-Pull Evaluation • Initiated by GDE & WWS at the end of September • Detailed list of questions to be studied developed: • Large group of accelerator and detector colleagues, from ILC and other projects, is participating in design and discussion of these question • The task force of detector experts was formed to contribute to detailed evaluation of the whole set of technical issues http://www-project.slac.stanford.edu/ilc/acceldev/beamdelivery/rdr/docs/push-pull/ Global Design Effort

  22. Reduced # Bunches Impact of ILC operation with a reduced number of bunches Introduction As a possible cost reduction option, a proposal to operate with half the number of bunches (approximately 1330 bunches) over the same train length (one ms) is being considered. Because of a factor of two reduction in the size of the RF system, this modification will result in a net savings of 2-3% of the total project cost. Although the peak luminosity of the machine will be reduced by a factor of two, a relatively straightforward upgrade of the RF system can fully restore the machine’s luminosity performance to that of the current baseline. Global Design Effort

  23. Luminosity Model – ½ RF Scenario Global Design Effort

  24. Change to Central Damping Rings Global Design Effort

  25. Cost Reductions Found (unvetted) 0.35% e- source: elim 1 NC beam, lasers to surface 0.14% e+ source: < # correctors, BPM, 2ndtarget sta. 0.20% RF: fast ACD charging PS for modulators 1.21% Controls: Front End electronics, cable plant, ATCA, network infrastructure, LLRF changes 1.80% Installation (in contract labor) new basis of est: scale time & motion to task, bottom-up est. 0.91% PS engineering optimization 0.29% Cold Vacuum: remove fast acting valves and 4.91% total 15/16 of Turbo Molecular Pumps Global Design Effort

  26. On Tuesday, Tetsuo showed: Our efforts at Valencia identified another 4.91%! Global Design Effort

  27. Plans until Beijing (Feb. '07) RDR prepare 1st drafts RDR final editing November December January February 2006 2007 Valencia Further cost consolidation CCR preparation & submission Cost & Design Freeze 30/11 Prepare for Full Cost Review SLAC Cost Review 14-16/12 Final cost corrections and documentation MAC 10-12/01/07 Agency cost briefings Beijing: RDR draft published Global Design Effort

  28. ILC Documents • Several reports for different audiences • Brochure – non-technical audiences, ready now • “Quantum Universe” level booklet ~30 pages • Executive Summary ~ 30 pages • Physics motivation, accelerator and detectors • RDR Report ~ 300 pages • high level description of the accelerator • DCR Report ~ 250 pages • physics and detectors Global Design Effort

  29. RDR Report • RDR is a high level description of the accelerator, CFS, sites and costs • A snapshot of what we propose to build • not a history of R&D, design evolution, and alternatives • Editors: • Nan Phinney (SLAC), Nobu Toge (KEK), Nick Walker (DESY) • Original schedule was complete draft now, but has been pushed back because of cost iterations Global Design Effort

  30. The ‘S’ R&D Task Forces S0 High-Gradient Cavities S1 High-Gradient Cryomodule To address priority R&D items, RDB has convened several ‘task forces’. S0-S3 will report on Friday AM GDE plenary S2 Test Linac S3 Damping Ring S4 Beam Delivery S5…Sn Global Design Effort

  31. The ‘S’ R&D Task Forces • Addresses current ‘poor’ yield for EP cavities • Primary goal: establish parameters for routinely producing 35 MV/m EP’d cavities • required  80% yield S0 High-Gradient Cavities S1 High-Gradient Cryomodule S2 Test Linac S3 Damping Ring S4 Beam Delivery H. Hayano, T. Higo, L. Lilje, J. Mammosser, H. Padamsee, M. Ross, K. Saito S5…Sn Global Design Effort

  32. What Happens after Beijing? • Public Release of Draft RDR and Preliminary Costing at Beijing • Cost Reviews, etc • Finalize RDR by Summer 2007? • Enter into Engineering Design Phase • Planning underway internally • Design will evolve through value engineering and R&D program • General Goal is to have Construction Proposal ready by 2010 Global Design Effort

  33. Proposal of the 2nd International LC Accelerator School in 2007 • First LC School held May 19-27, 2006, in Sokendai, Japan -- A big success! • Our proposal: • to hold a second topical LC school similar to the first school • solicit advisory help from USPAS and CAS • tentative location and time is Erice, September-October, 2007 Global Design Effort

  34. Summary • Status of Costing • First costing available at Vancouver (July) • Cost to performance optimization • Component level cost reduction (requirements) • Machine design changes • Changes effecting physics performance • Status & Plans for design modifications • Several proposals accepted and some rejected • Changes having physics impact (Valencia) • Complete RDR by Beijing Meetings • Global planning for critical R&D beginning • Formation of ‘S’ task forces Global Design Effort

  35. Final Comments • Discussion Items (RDR) • The MAC Review in January? Preview of RDR and Costs or list of items? • Informing ILCSC (Feb 4?) • Informing FALC ? • Strategy for Release – ICFA Feb • How are we going to approach getting candidate sites? Who solicits? Global Design Effort

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