1. A U.S. Department of Energy Office of Science Laboratory Operated by The University of Chicago Argonne National Laboratory Office of Science U.S. Department of Energy The LCLS Undulator System Overview Stephen Milton LCLS FAC Review April 28 - 29, 2004

2. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 2 Brief LCLS Overview Undulator Systems WBS 1.4

3. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 3 UCLA LCLS Project Engineering and Design Organization 2004 Present Relationship within LCLS

4. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 4 Undulator Hall Layout

5. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 5 Laboratory Relationship and L3 Organization APS J.M. Gibson Assoc. Lab. Director LCLS Undulator S. Milton Project Director LCLS Project J. Galayda Project Director Accel. Systems. Div. R. Gerig Division Director Exp. Facilities Div. E. Gluskin Division Director APS Operations Div. W. Ruzicka Division Director D. Walters Vacuum/Diagnostics CAM M. White Magnet Systems CAM J. Stein Controls CAM

6. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 6 LCLS Undulator System PED Org. (Present) This is not a complete list as we have drawn heavily from others within ANL and SLAC, but at a lower fraction than those listed S. Milton LCLS Undulator Sys. F. Coose, Project Analyst F. Clark, PMCS D. Walters Vacuum/Diagnostics CAM M. White Magnet Systems CAM J. Stein Controls CAM SLAC/AIM J. Chan PMCS Manager J. Bailey, ME (NE) S.H. Lee, ME B.X. Yang, Phy I. Vasserman, Phy R. Dejus, Phy E. Traktenberg, ME G. Lawrence, ME E. Moog, Phy SLAC R. Ruland Mag. Meas. Fac. J. Welch Fixed Support Interfaces Contract B. Delesio ANL Indirect Support As needed

7. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 7 Full Length Prototype Undulator Module

8. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 8 3-D ProE Model of Prototype Module

9. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 9 Undulator How to set K -Shimming - 1 micron shims are not practical -End Phase control - Use unproven expensive piezo drives - Might be useful to compensate temperature changes -Back pole “comb” shunts - Complex mechanics -Canted poles - Simple to implement - Some issues with coupling to trajectory

10. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 10 Recent Highlights: K Setpoint--Canted Poles Average K Value Set by the horizontal location Has the additional possibility of adding a small amount of tapering in the future See Isaac’s talk for measurement results

11. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 11 Undulator Assembly Schematic

12. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 12 Short Break Assembly

13. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 13 Long Break Schematic

14. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 14 Entrance Section Schematic

15. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 15 Exit Section Schematic

16. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 16 Support Interface

17. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 17 Interface to Conventional Facilities ANL provides to SLAC CF (David Saenz) input per request

18. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 18 Magnet Measurement Facility MMF is a SLAC Responsibility with ANL in Consulting Role ANL Delivers Magnets to SLAC MMF SLAC Personnel Measure and Tune Magnets ANL/SLAC signoff on magnet and magnet becomes SLAC’s responsibility

19. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 19 Roll Away Undulators Horizontal Version Conceptual Diagram

20. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 20 Issues: Undulator Stability over time -Temperature is very critical - Tight temperature specifications are being placed on the undulator hall What moves and what does not move -BBA requires accurate control over the quad position. -The quad position must be held accurately relative to the undulator. This is particularly true in the vertical direction. -Moving the undulator/quad assembly to micron levels is very challenging Tight Schedule -Trying to come up “clean” procurement strategies

21. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 21 Vacuum System Vacuum Chamber -Many Designs and Design Options Explored -Surface roughness - Definition - Achieving - Electro polishing of Cu explored - New idea of using flow polishing being pursued Prototyping -To begin soon SS316L OFHC Cu Cu-SS Brazing Cu-Cu E-beam Tack Welding II 6 mm  0.1 8 mm  0.2 Cu-Coated on mirror-finished SS 316L strips (1.5 mm thick) 4 x E-Beam UHV Welding Leak Check I

22. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 22 Diagnostics No Intraundulator x-ray diagnostics -Now an R&D task End-of-undulator x-ray diagnostics -In the process of optimization -The need for roll away undulators Other Diagnostics -In the design process -RFBPM - Prototype is critical, but early tests in Japan have already been performed

23. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 23 Controls Various interfaces to SLAC -EPICS -> SLAC interface -Timing interface -See J. Stein’s and B. Delesio’s talks

24. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 24 Schedule and Cost Creation Level of Effort -The LCLS undulator team has devoted most of its effort over the last 6 months towards the generation of an integrated cost and schedule Methodology -Start from CD1 estimates -Refine and create logic in MSProject -Transfer to P3 (Primavera Project Planner) - Use P3 experts to get under control: F. Clark (ANL), J. Chan (AIM/SLAC) S. Thompson (CH2M Hill Consultant) -Twice weekly scrubbing with SLAC via Netmeeting

25. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 25 Effort and Cost Profile Additional Scrubbing will be done prior to the EIR to further refine our numbers. PED, Construction, and OPC Included

26. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 26 Schedule and Cost Issues Expected very rapid buildup in force -Murray Gibson (ANL Associate Laboratory Director APS) has already been made aware of this and is ready to work with us to ensure adequate resources are made available - Continues to stress that LCLS is a Top Priority of the APS -Have already enlisted additional engineering support for this year - Will be working on procurement packages as well as technical issues so that when the money arrives we are ready to go Tight Scheduling due to FY boundary issues -Work continues on developing solid procurement strategies

27. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 27 Major Events/Milestones Long Lead Procurements -Must be “out the door” Oct/Nov 2004 Construction of Undulators -Would like 1 st article delivery in FY05 to ease the schedule -Must have assembly started beginning of FY06 (when construction funds arrive) Magnet Measurement Facility -Need to get a magnet to them soon (by end of calendar year) to begin initial controls integration 33 rd Magnet Arrives -March 07 July 07 -Expect undulator system installation complete

28. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 28 Past DOE Reviews: CD1 and CD2a Manufacturing Concerns, Materials, Tolerances, etc. -1 st prototype report provides summary - http://www.aps.anl.gov/xfd/tech_bulletins/List_of_TBs.html http://www.aps.anl.gov/xfd/tech_bulletins/List_of_TBs.html - ANL/APS/TB-48 Procurement strategies and QA ANL Management Backing BPM tests -Funding not sufficient to meet Sept 04 deadline Dedicated experienced team for procurement -Established -QA plan not yet in place (Required for CD-2b acceptance) Costing issues -Changes in costs between CD1 and CD2a are understood -ANL will make the major procurements

29. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 29 Past DOE Reviews: CD1 and CD2a Schedule -Understood, but will be tight along the undulator path Staff vs. Funding -Allocated $1.18M for FY04 -Trimmed number of FTE to ~8 by moving some PED work into FY05 -FY05 rapid increase in staffing has support of ANL management Organization -Matrixing between SLAC and ANL has been implemented, but not completely formalized Procurement options for LLP and Undulator Assemblies -Still being studied in depth for optimization and fit to BA -Will organize a separate review of this activity before release

30. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 30 Past Reviews: Undulator Magnet (Nov 03) Phase Adjusters -Additional studies have been performed; however, -at present we have decided not to implement them Comb Shunt -Only minor additional work was done on this. -We have decided not to implement it. (too complex). Canted Jaws -We have tested and decided to use this idea. - Thank You Undulator Committee and Especially J. Pflueger Sm 2 CO 17 Advantage? -Not as much of an advantage as previously thought -Too many open issues. Not enough time and money -APS to pursue this on their own

31. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 31 Past Reviews: Undulator Magnet (Nov 03) Thermal Control -Stringent requirements built into tunnel for support stability 2 nd Prototype -Will not be built -Focus is now on 1 st article acquisition Production/Procurement Plans -We are starting to work through these details. -A formalized risk assessment of the varios options has not yet been performed.

32. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 32 Past Workshops (Project Agreement Meetings) Parameters Meeting (October 03) -Purpose was to fix both K and lambdaU -Results - K decreased slightly to accommodate slightly lower electron beam energy (14.1 GeV vs. 14.35 GeV) Diagnostics/Commissioning Meeting (Jan 04) -Purpose was to establish a commissioning plan based on an achievable set of diagnostics -Results - There will not be any intraundulator x-ray diagnostics. - We will rely on end-of-undulator diagnostics for x-ray characterization plus a roll away undulator option - Even these are difficult and still under study

33. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 33 Undulator System Review: March 04 System Integration -The committee felt we must focus attention on system integration. We agree. -However, effort since this review has been focused on preparation for the EIR. Staffing Profile -Again it is pointed out that the staffing increase into FY05 is steep. We understand this and are doing our best to plan and prepare for it. Risk Registry and Issues Log -Keeping track of critical and near critical tasks. -Suggested the development of one. Again we agree that this is a good idea and will be implemented in the near future.

34. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 34 Undulator System Review: March 04 NdFeB vs. Sm 2 CO 17 -Committee not ready to endorse NdFeB material choice Committee would prefer to see variable strength quadrupoles Committee endorsed at least a manual retraction system for the undulator They suggest a thorough system prototyping even at the expense of a delay in the 1 st article undulator Defer prototyping the granite base Begin prototyping of vacuum systems BPM -Felt to be very near critical path. -It is and we will need to start moving on this soon.

35. LCLS FAC Review: April 28-29 2004 ANL Pioneering Science and Technology Office of Science U.S. Department of Energy 35 Conclusion A prototype undulator has been thoroughly tested and documented The vacuum chamber is ready to be prototyped Effort for x-ray diagnostics will be placed on the end-of- undulator diagnostics suite More effort will be placed on the RFBPM when resources become available Controls integration planning is starting and moving along well A schedule and basis of estimate has been constructed and is near ready for the EIR