ILC RDR Magnet Systems Group Teleconference – September 6, 2007

1. ILC RDR Magnet Systems GroupTeleconference – September 6, 2007 Overview J. Tompkins

2. Agenda J. Tompkins - Overview

3. Completed ? - ? - ? - Talks Requested ? - The EDR Kick-Off Meeting Schedule(as far as we know) J. Tompkins - Overview

4. Update • RTML KOM (“kick off meeting”) held at Fermilab on Aug 27-29 • jct represented Magnet Systems group • Talk prepared by Vladimir with some additions by jct • Meeting was held in the “Fish Bowl” – room for about 10-12 people; attendees includes • Marc Ross, Vic Kuchler, Peter Tennenbaum, Nikolai Solyak, Bialawons, etc. • Format was very informal – slides were read by all and discussions ensued • EDR is progressing, slowly… • Acknowledgement of need for oversight at PM level for magnets and other technical systems • Definition of what gets done remains somewhat unclear and budget/priority dependent… J. Tompkins - Overview

5. RTML KOM, continued • Presentation: RTML_Magnets_KOF_Meeting_082107b_jctMods.ppt • Vladimir’s slides addressed RTML magnet overview, counts, styles, and recently proposed (accepted in April/May) changes • Vladimir’s list of design issues includes: • The design process and information flow, data exchange between different areas, regions, institutions, teams, specialists. We should expect large fraction of time will be waiting additional information, technical decisions, changes in specs, etc… • Integration with other sub-systems and making technical decisions for all areas simultaneously on the same issue and problem. • Find professionals for magnet design and integration with needed experience. • Converting R&D projects into useful results for EDR. • Wasting large fraction of specialists time for meetings, reports, reviews, travels with corresponding low impact on EDR progress. • Any change in lattice or general magnet parameters will cause magnet redesign and corresponding design time increase. • The late start of EDR writing. • Industry cost estimation for different regions and firm ranks. J. Tompkins - Overview

6. EDR Magnet Deliverables - Vladimir • Design each magnet style: • - Magnetic design (2D and if need 3D magnetic field simulations to confirm specified field quality and magnet performance; • Pole profile and geometry optimization for better integrated field quality; • Mechanical and thermal analysis; • Magnet documentation. • Magnet documentation package should include at least: • Magnet specification with all needed parameters; • Results of magnetic field analysis and also mechanical and thermal calculations. • Magnet drawings with at least cross-sections and views transverse and longitudinal with all connections to the power, water, instrumentation and corresponding schematics; • Description of all used materials: iron, copper, insulation, probes, cables, etc… • Description of magnet manufacturing technology: winding coil technique, epoxy impregnation, curing, stamping laminations, yoke and magnet assembly, etc… • Magnet support structure general views with adjusting mechanisms • Drawing of magnet mounting in the tunnel. J. Tompkins - Overview

7. jct Additions to Vladimir’s Slides • Priorities for detailed design effort need to be established - key magnets: complexity, cost, quantity (and/or all of the above) • Detailed design & cost estimate • Optimization of parameters, e.g. peak field vs. integral required • Conventional vs. superconducting • FMEA/Reliability • Candidate magnet styles • Large solenoids in Spin Rotator section • SC quadrupoles in rf cryomodules • Transfer line quadrupoles and steering dipoles • Kickers • FY08 budgets do not appear to support any significant magnet engineering effort (for detailed design) J. Tompkins - Overview

8. jct Add-ons, cont. • Magnet reliability is a major concern • MTBT assigned for magnets in the range 10 – 20106 hrs • Reliability must be ‘built in’ – part of the design process – and addressed early in the project • FMEA – Failure Modes and Effect Analysis - is a structured, qualitative approach to understanding • FMEA need to be carried out on specific magnet detailed designs, representative of the magnet spectrum • This is an important ‘up front’ engineering task and cannot be left to the end J. Tompkins - Overview

9. Detailed Design  Integration Issuesjct add-ons, cont. • EDR Magnets – ‘Interface/Integration’ Topics • Vacuum chamber (aka ‘beam pipe’) treatments • Power Systems • Coordination with Technical and Global Systems • AC Power • LCW system • Controls interfaces • Installation Does this get defined separately (and differently) for each Area System? • How does this get done? J. Tompkins - Overview

10. EDR – Definition, Schedule, and Resourcesjct add-ons, cont. • EDR – time scale FY07-FY09 • FY2007 is over (funds are gone; magnet design not begun) • FY2008 has very limited resources for “low priority” items like magnets… • FY2009 appears to have some additional resources for magnet detailed design (mostly rumor…) • The conclusion is that there will not be a significant number of magnet styles with detailed designs by FY2010 • Compresses all of detailed design into the ‘pre-production’ and early project phases • Pile-up of work on magnet designers, draftspersons, etc. • Potential schedule impact on vendors and machine installation • Ready for approval process in FY2010 (?) • Not a realistic schedule w/res to ~130 magnet designs J. Tompkins - Overview

11. RTML – What is Missing Here?jct add-ons, cont. • Kickers and Pulsed Magnets • R&D on fast pulsers is centered in DR effort • Separate effort for RTML? • Is there a mechanism in the EDR approach to find a solution across Area System boundaries? • More general concerns across Area Systems • Common Design Standards • Cost Estimation Standards • Measurement & test • “Global’ Reliability/Maintainability Studies • Materials/components • Processes • Operating regimes & environments J. Tompkins - Overview

12. (Vladimir’s) Conclusions • All RTML magnets are feasible for design and fabrication. • Total number of magnets 4576. • Number of magnet styles: Dipoles- 6, Quadrupoles – 4 plus 1 – superconducting, Correctors – 2 plus 1 superconducting, 1 superconducting solenoid, plus septums, bumps and kickers. • Time frame for the magnet design depends on many factors (region, firm, institution, salary range, experience, supporting structure, etc.) and better use bidding process to resolve this issue. • Magnets for R&D and prototyping: 1- conventional dipole, 1- conventional quadrupole, 1- corrector, 1- superconducting quadrupole package including correctors, 1- superconducting solenoid 0.5 m model. • Goals for R&D: prove chosen magnet technology, reliability, investigate magnetic center stability in quadrupoles at BBA, hysteresis effects in dipoles, prove the chosen magnetic measurement technique. Investigate coupling effects between main magnet and correctors. Investigate the magnets long term behavior. J. Tompkins - Overview

13. Identified High-Priority RTML Issuesfrom Ross/Walker Closeout • Common housing / integration aspects • Evaluation and documentation of key critical issues • Identify what may change (site-specific issues) • Plan to accommodate these in EDR • Beam dynamics – specifically emittance preservation (tuning) • Collimation efficiency / halo generation another noted issue. • Complete lattice needed for beam dynamicists • (Note many beam dynamics issues identified in RTML) • Vacuum, magnet systems engineering re-evaluation needed for better value estimate • Consolidation of requirements • Best performed after initial lattice iteration • (need for ‘frozen’ baseline lattice) • Timing (LLRF) issues J. Tompkins - Overview

14. RTML Specific Issuesfrom Ross/Walker Closeout • ACD: Ultra-short bunch compressor • Identify impact on CFS etc. • Bunch compressor tunability • What is the cost impact? • Integration: • CFS will own integration related WPs • Work closely together with Integration Group • CFS cost-optimised geometry should be design driver (where possible) • Optics should follow unless it becomes impossible or too expensive • Iteration will be necessary. • (Don’t forget e+ source interference) • Identify strategy/method of allocating ‘volumes’ in tunnel space for individual systems. • Consider using 3D CAD from start (-> management decision) J. Tompkins - Overview

15. RTML Magnet Specific Issues , cont.from Ross/Walker Closeout • Power supply configuration (one magnet one quad) should be re-evaluated -> Value engineering • Need for accommodating energy scaling? (Note: there was also a discussion of studying mounting dipole steering coils in the quadrupole; saving length along beamline but still requiring independent controls and questions of hysteretic behavior…) • Magnet prototyping • Spin-rotation solenoids • SC quadrupoles (cryomodule) • Possible European contribution from CIEMAT known to PM office • Q20L200 (large quantity – value engineering) • Wide dipole – if needed J. Tompkins - Overview

16. General Commentsfrom Ross/Walker Closeout • WP Allocation • PM office / EC action item • Cornell RTML ‘bid’ will be considered in global context (PMs together with Solyak) • Initial work will be to consistently document the baseline • Reflected in WBS (Work Packages) • Efforts to standardise requirements documentation will soon be underway • These (and other baseline-defining) documents will be placed into EDMS under Change Control • Traceability of accelerator design requirements to technical (engineered) solutions will be mandated. • Engineering Management / EDMS Office J. Tompkins - Overview

17. RTML KOM Summaryfrom a Magnet Systems Viewpoint • EDR does not have an engineering design for the machine as its goal • Resources not available • Some support for design of a limited number of ‘critical’ magnets is identified • Scope of the EDR is not yet clearly defined • Time frame (aka ‘schedule’) “needs further definition” • Closeout summary did not explicitly include Reliability (FMEA) issue J. Tompkins - Overview

18. RTML Summary , MagSys View, cont. • Coordination/Integration function across Area Systems is acknowledged as needed • Indication that there will be some magnet coordination function at the PM level • There needs to be further explicit and transparent definition of how work packages will be ‘awarded’… • In General, the ‘new’ EDR organization is still in its formative stage and there are many things yet to be done • The structure is not complete • Responsibilities are still being defined • Resources are an issue • The time scale for this process needs to be defined J. Tompkins - Overview

19. Area Systems EDR Kick-Off Meetings • Note: there is an ALCPG/GDE meeting at Fermilab 10/22-10/26 • BDS is scheduled for 10/11-10/13(?) • No requests from other areas • Note potential conflicts with e- source and main linac (9/24, 9/26) and e+ source and BDS (10/8,10/11) with the e+ meeting in England… J. Tompkins - Overview

20. BSD Kick-Off Meeting • A. Seryi: BDS meeting to be held Oct. 10th-12th at SLAC; magnet presentations listed: • RDR completeness - Magnets, warm, DC - J.Tompkins, C.Spencer • IR magnets and cryo system optimization for push-pull IR - B.Parker, K. Tsuchiya • Optimization of magnets- J.Tompkins, C.Spencer, V.Kashikhin • EDR Planning - BDS magnet & PS J.Tompkins, C.Spencer (note: should include P. Bellomo) The complete agenda is found here:BDS-EDRkickoffMeeting_draftAgenda_070801.pdf • Cherrill and Paul will be there (by definition), Vladimir & I can attend via webex for the EDR Planning session • Presentations can be developed jointly, in advance • We should review the work package descriptions and present a response… J. Tompkins - Overview

21. Kick Off Meetings – Generic Outline • Magnet Overview – RDR to date • Overview of magnets • Identification of Key magnets • Major changes in Area System since RDR • EDR Magnets – Specific Topics • New magnets since RDR • Quantities, Requirements, Cost estimates,… • Powering, stringing, and associated issues • Engineering designs (the “E” in EDR – which magnets need detailed designs?) • Determine critical magnets: cost, complexity, uncertainty, etc. • Engineering design scope, resources needed, interfaces • Detailed layout of ‘interconnects’ needed to determine realistic slot lengths • FMEA/Reliability J. Tompkins - Overview

22. Generic Outline, cont. • EDR Magnets - General Topics • Common Design Standards (cont. from RDR work) • Core, Conductor, LCW, Fittings, hoses, etc. • Cost Estimation Standards (cont. from prelim. RDR work) • Design, Manufacturing-Materials & Labor; Measurement & test • “Global’ Reliability/Maintainability Studies • EDR Magnets – ‘Interface/Integration’ Topics • Vacuum chamber (aka ‘beam pipe’) treatments • Power Systems • Coordination with (former?) Technical and Global Systems • AC Power – ‘treaties’ to be negotiated • LCW system – ‘treaties’ to be negotiated • Controls interfaces – ‘treaties’ to be negotiated • Installation – ‘treaties’ to be negotiated • etc. J. Tompkins - Overview