LCLS Extruded Vacuum Chamber Status (current status) Emil Trakhtenberg Greg Wiemerslage Mark Erdmann Patrick Den Hartog April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS vacuum chamber current status All 41 chambers are fully machined. 41 chambers have been welded. 35 chambers were inspected, baked, certified and shipped to SLAC. The rest of the chambers will be shipped to SLAC before 05/10/08. April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS Extruded Vacuum Chamber Status Changes in LCLS VC design after production of the first six chamber to simplify its alignment First six chambers All other chambers April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS vacuum chamber adjustment and wall thickness inspection After changing of the chamber design and adjusting system design chamber alignment usually took about 4 hours. Wall thickness variation for the most of the chambers is within ±40µ. Some results of the vacuum chamber inspection are shown on the next slides April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS Extruded Vacuum Chamber Status Upper Tolerance Lower Tolerance April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS Extruded Vacuum Chamber Status Upper Tolerance 1st Delivery April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS VC alignment and thickness inspection April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

Graphical Display of Surface finish Data Should be Avoided Acceptable Very Desirable April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

Surface Finish Summary The average of all vacuum chambers is 14.86 mrad in Z′ and 35.14 mrad in X′ Extrusions 7, 10, 16, 28 and 35 were sacrificed to verify surface finish in the middle of the extrusions April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS VC on the weldment table Flange installation fixture April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

End bi-metal flange welding All bi-metal flanges were polished, inspected and welded April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS Extruded Vacuum Chamber Status Inspection and correction of the LCLS VC end flange perpendicularity (.003 - .004 precision) April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

Inspection of the total length of the LCLS VC Initial attempt to inspect the vacuum chamber length using caliper, gage block and filler gage failed. Finally length of the all vacuum chambers after welding was measured successfully using laser tracker. April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

Summary of the Inspection of the total length of the LCLS VC Upper Tolerance Lower Tolerance April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS VC on the baking stands April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS VC on the baking stands Note: Ion-pumps are still off April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS vacuum chambers in the shipping crate April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

CONCLUSION We plan to deliver all LCLS VC to SLAC before 05/10/2008 Manufacturing and certification of the LCLS vacuum chambers is proceeding with the full agreement with our schedule and within the allocated budget. We plan to deliver all LCLS VC to SLAC before 05/10/2008 April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status

LCLS Extruded Vacuum Chamber Status ACKNOWLEDGMENTS A special “thank you” to: Joe Gagliano, George Goeppner, Dana Capatina, Scott Doran, Esiquio Salazar, Kevin Knoerzer, Russel Otto, Dan Nocher, Mike Bosek, Dan VanLannan, Wayne Michalek, Mark Martens, Paul Aguirre, Aaron Lopez, Lahsen Assoufid, Jun Qian, Albert Macrander; Frank Bock (“Cardinal aluminum Co.”), Don Fulcher (“Engineered Finishing Co.”), Simon Sorsher (“Hi-Tech Mfg.”). April 30, 2008, UNDULATOR WEEK 3 LCLS Extruded Vacuum Chamber Status