Undulator Alignment Plan LCLS Project Lehman Review February 7 - 9, 2006 Catherine LeCocq SLAC Alignment Engineering Group

Planned Alignment Activities Global Alignment Monitoring Systems Magnet Measurements Facility Undulator Hall Tunnel Alignment

Agenda relative to Metrology Internal LCLS Undulator Alignment and Motion Review http://ssrl.slac.stanford.edu/lcls/undulator/meetings/2005-10-20_intl_align_review/ SLAC, October 20 & 21, 2005 Committee Virgil Bocean (FNAL) Gordon Bowden (SLAC) Steve Marks (LBNL) Will Oren, Chair (JLAB) Agenda relative to Metrology Component fiducialization Two-tier alignment Monitoring systems Published report http://www-ssrl.slac.stanford.edu/lcls/undulator/meetings/2005-10-20_intl_align_review/lcls_alignment_summary_report-final.pdf

Girder Alignment Sequence: Items to work on: Fiducialization of all components Assembly on girder and pre-alignment: Combination MMF & other on-site locations Final alignment on girder: In MMF with CMM & local set-ups Items to work on: Handling Storage

UN36_00060 = CMM Procurement Leitz Reference Model 45129 CMM manufactured by Brown & Sharpe in Wetzlar (Germany) is on order. It should be shipped after in-situ special tuning currently scheduled for the week of March 6th. It is then expected to arrive at SLAC end of April. CMM weight capacity is 3000 kg. CMM measuring range is 0.9 x 1.5 x 4.5 meters. CMM resolution is 0.1 microns or 0.000004 inches. CMM spatial accuracy is a formula based on the length L (in mm): Original: 2.0 microns + L/350 Special calibration for undulator segment: 1.5 microns + L/500.

Tolerance for Girder Alignment Component Alignment on Girder RMS Value Quadrupole in both horizontal directions 125 µm Quadrupole in vertical direction 60 µm BFW in both horizontal directions 100 µm BFW in vertical direction 55 µm

Production Measurements MMF Schedule Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Tuned March 6 Shipped March 20 @ SLAC April 24 Commissioned May 15 CMM June 1 Completed April 15 BENCH MMF Ready To Measure July 28, 2006 MMF Const Done (Feb 17) MMF BO (Mar 6) 1st Article @ SLAC (Jun 2) May 1 Ready to Measure July 28 Production Measurements August 29, 2006

Tunnel Alignment Sequence: Items to work on: Establish survey network in empty UH. Mark bolt-hole floor positions for pedestals. Align pedestals. Survey girder components. Final alignment & integration of monitoring systems. Items to work on: Finalize penetrations & other access. Analyze mechanical requirements for cam movers. Make a local controller for cam movers. Allow schedule for repeated surveys due to tunnel movements.

Undulator Hall Tunnel Location FEH Service Bldg FEH X-Ray Tunnel CLOC NEH FEE Beam Dump Undulator Hall BTH BSY LINAC

(with removable spherical target) Survey Monuments Extract from ESD 1.4-113 Undulator Tunnel Survey Monument Positions B. Fuss wall monuments (with removable spherical target) floor monument 6’ 1‘ stay-clear

Undulator Hall Network 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 UH Tunnel Start STA 1672.09 ft 509.653 m SLOPE UH Tunnel West Side Thermal Barrier STA 2237.33 ft 681.939 m Undulator Hall Tunnel BTH Beam Dump 24” Vertical Penetration (approx. position) sD = 30 μm sh = 30 μm / D sv =50 μm /D sdh = 50 μm sz = 22 μm sx = 47 μm sy =46 μm

Tolerance for Tunnel Alignment Girder Alignment in Tunnel RMS Value Quadrupole Deviation from Straight Line 100 µm Quadrupole in longitudinal direction 500 µm Undulator Segment Yaw 240 µrad Undulator Segment Pitch 80 µrad Undulator Segment Roll 1000 µrad

Undulator Hall Schedule BO of UH in May 2007 Installation and survey of network: May through June 2007 Mark pedestal bolt locations and align pedestals: June through August 2007 Girders installed and aligned: September 2007 to June 2008 Final alignment and mapping complete by July 18, 2008

Current Preparation MMF Set-Up HLS and WPM Evaluation Network Construction monuments Tunnel penetrations Assembly and Installation Support Integration of monitoring systems Evaluation and testing of portable CMM arm Pedestal design

GPS Baseline Network

LCLS Construction Network LCLSR002 LCLSR001 LCLS001 SLAC NGS23 LCLS003 LCLS004 BMSA LCLS002 http://www-group.slac.stanford.edu/met/Align/GPS/GPS_Main.html

Documentation Overall Plan Coordinate Systems Monumentation PRD 1.1-003 – Conventional Alignment System Requirements Coordinate Systems SLAC-TN-05-021 - LCLS Undulator Coordinate System NAD83-SPCS-CA Lambert Zone 3, see AEG web page: http://www-group.slac.stanford.edu/met/Align/LCLS/LCLS.html ESD 1.9-106 - Height Systems for LCLS Construction Monumentation ESD 1.9-107 - LCLS Alignment Construction Requirements ESD 1.4-113 - Undulator Tunnel Survey Monument Positions Specialized Alignment Systems ESD 1.4-105 – Hydrostatic Leveling System Specifications