Undulator System Overview

Undulator System Overview LCLS Week Jan 05 Stephen Milton

Contents • Last Year • FY05 Year in Review • 1.04.01 Management Update • 1.04.02 Controls Update • 1.04.03 Magnets and Supports Update • 1.04.04 Vacuum System Update • 1.04.05 Diagnostics System Update • 2.04.xx R&D/Spares Update

Major ANL Work Last Year • Creation of Resource Loaded Project Schedule • Plus various reviews to confirm the technical and project management aspects of the undulator system, validate the resource loaded schedule and the resource requirements necessary to successfully complete the project • Development of the Canted Pole • Provides precise tuning capability and in-situ K tapering • Value Engineering of the Prototype Undulator • The undulator is now a much simpler and robust device

Major ANL Work Last Year • OTR and Wire Scanner Designs • Ready to prototype • Controls Integration • Must make all systems compatable with existing SLAC control system • End-of-Undulator Diagnostics • Develop plan and needs • Prepare for Long-Lead Procurements • Develop Advanced Procurement Plans, Statements of Work, etc.

FY05 Year in Review

Management: Organization APS J.M. Gibson Assoc. Lab. Director LCLS Undulator S. Milton Project Director LCLS Project J. Galayda Project Director LCLS Project H.D. Nuhn Undulator/FEL Scientist D. Walters Vacuum/Diagnostics CAM Accel. Systems. Div. R. Gerig Division Director Exp. Facilities Div. E. Gluskin Division Director M. White Magnet Systems CAM R.Ruland/MMF J. Welch/Fixed Support CAM APS Operations Div. W. Ruzicka Division Director J. Stein Controls CAM

Effort Requirements Average 15 FTEs

Management: Meetings with ALD and DDs • Effort Planning • On January 6th we meet with the Associate Laboratory of APS, the 3 APS Division Directors and relevant Group Leaders to discuss the LCLS effort needs over the next year • Names, amount of time required, time required, and when these people were needed were presented. • Some adjustments were suggested, but overall our effort plan was accepted by the ALD and DDs

Effort Further Summarized Includes only those tasks coded as shops fabrication. The real number is higher

Management: Chief Engineer Position http://external.hr.anl.gov/job/search.jsp

1.04.02 Controls • Issues to work on • Cable needs and layout • Josh working on this but still needs help • Need better idea of all alcoves and service building (beyond title I design drawings) • New Lab • Could not find an existing lab, but found a new suitable space that will require outfitting • Will be used initially for • Video/Imaging prototyping • Motion control prototyping • Specifications • Video and Motion • Testing • Motor radiation tests performed • Interface issues with SLAC • Josh <-> Bob link • Standards

1.04.03 Magnet and Supports • Undulator • 1st Procurement package working its way through the system • Vendor visits performed for Ti strongback and qualified • RFQ to be released soon • One last look at the PRD and items that could impact the procurement of the strongback • Very minor change just made • Wedge shims thickness increased from 1.5 mm average to 2 mm average • Will allow future gap opening by 2 mm if ever required • Final look before award • Will organize in the next couple of weeks • Magnet blocks and Poles • RFQs to follow shortly after the Ti strongback is out • Keeping our eye on the ball

1.04.03 Magnets and Supports • Support Movers • Undulator down to the fixed supports • Work on going • Depth of work so far delayed due to questions related to the physics requirements document • Ramp up to refine details to begin February • Expect to be ready for integration tests in the October November time frame • Full Mockup • Complete 2 undulator setup • Assembly done at ANL in the early 2006 period • Will work out all interference, mover, etc. issues • Mock up then sent to SLAC • Assembly training • Alignment tests • Stability and accuracy tests

1.04.03 Magnets and Supports • Quadupoles • Electromagnets with correctors • Have held back until the PRD is stable • Not on critical path • Will evolve out of existing designs • Linear collider

1.04.04 Vacuum System • Change from Cu to Al • AC conductivity • Forced change from use of Cu to Al • We were already cutting material for the Cu prototype • Cu has been set aside but will not be forgotten…just in case • Looks to be settling down • Desire Al in a parallel plate geometry • See AC conductivity breakout for more details • Theory, simulation, actual measurements of materials being pursued • Al Chamber work design/prototyping work • Materials and methods reviewed • Al weldment, AL extrusion, Al coated on SS • Al coated on SS preferred solution at present • SS permeability • Under study (See Dean W. for further details)

1.04.04 Vacuum System • Vacuum other • Bellows and transitions • Work was done in the past on the bellows and transitions, but will now need to be revisited in light of the need for Al and “parallel plate” geometry • These items will take some thought in the coming months to determine how all this is to be done and meet the performance requirements

1.04.05 Diagnostics • Optical Transition Radiation (OTR) • Engineering design basically complete • Prototype to be built when funds become available • Wire Scanner • Based on existing designed but modified for the small chamber • Still researching wire choice • Design begun • Prototype to be constructed this year • BPM (RF) • Very little work done to date • Would like to maintain commonality with the rest of SLAC • Will be the topic of one of the breakout sessions tomorrow • See Patrick K. for further details of the breakout session • Plan to produce prototype detectors and processing electronics and test on SPPS within a year.

1.04.05 Diagnostics • End-of-Undulator Diagnostics • Many good ideas on how to measure the FEL process • But not integrated into a full plan/package at this point • We really need to work this out at this time. • We also need to assign clear responsibility • John A. to focus on this during part of his breakout session on Thursday

2.04.xx R&D and Spares • Misc. R&D Activities • Exploration of ideas to verify the quality on undulators in-situ • Bingxin Y. – Angle integrated spectra • Jim W. – on-axis spectra • Dong-Eon Kim – in-place Hall probes • Vacuum Chamber • AC Conductivity • SS material properties • SS coatings

Undulator System Summary • FY05 • Should have close in hand a 1st article production undulator • Production undulator assembly pipeline ready for operation • Should be near completion of testing complete prototypes of the OTR and wire scanners along with their controls • BPMs close to ready for testing • Vacuum chamber prototype testing complete • Support mover system prototype under construction • Preparation for mockup testing well underway • End-of-Undulator diagnostics system well understood and planned

Undulator System Overview