1October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Undulator Alignment Concept &Conventional Alignment

Catherine LeCocq, SLAC October 21, 2005

Undulator Alignment Concept &Conventional Alignment

Catherine LeCocq, SLAC October 21, 2005

Undulator Alignment Concept Conventional Alignment Steps

Instrument and Tooling Network Design

Alignment after Installation

Undulator Alignment Concept Conventional Alignment Steps

Instrument and Tooling Network Design

Alignment after Installation

2October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Fiducialize all possible components(Yurii, Zack, Eric)

Assemble and pre-align all relevant components on a girder(Robert)

Build a tunnel network

Set all girders in the tunnel

Map all components to verify ab-initio alignment for BBA

Launch monitoring systems(Franz, Georg)

Perform BBA(Paul)

( ) … Presenter

Fiducialize all possible components(Yurii, Zack, Eric)

Assemble and pre-align all relevant components on a girder(Robert)

Build a tunnel network

Set all girders in the tunnel

Map all components to verify ab-initio alignment for BBA

Launch monitoring systems(Franz, Georg)

Perform BBA(Paul)

( ) … Presenter

Current Undulator Alignment Concept

3October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Gather all fiducial data and perform tunnel network design

Install tunnel monuments (floor and wall)

Survey tunnel network

Mark floor for anchors

Align “floor plates”

Re-survey tunnel network

Align “girder stands” (with CAM movers pre-set)

Survey girders (fully loaded and pre-aligned)

Gather all fiducial data and perform tunnel network design

Install tunnel monuments (floor and wall)

Survey tunnel network

Mark floor for anchors

Align “floor plates”

Re-survey tunnel network

Align “girder stands” (with CAM movers pre-set)

Survey girders (fully loaded and pre-aligned)

Conventional Alignment Steps

4October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Instruments and Tooling (1)

5October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Laser TrackersFARO SI

Precise LevelsTrimble (Zeiss) DiNi12

Leica DNA03

Total StationsLeica TC2002

Others FARO Platinum Arms (4ft and 8ft)

Optical Tooling (K&E and Brunson Jig Transits, K&E levels)

Portable Water Level (in development)

SLAC Calibration Laboratories:Sector 10: Horizontal and Vertical Comparators

Heavy Fab: K&E Optical Comparator

Laser TrackersFARO SI

Precise LevelsTrimble (Zeiss) DiNi12

Leica DNA03

Total StationsLeica TC2002

Others FARO Platinum Arms (4ft and 8ft)

Optical Tooling (K&E and Brunson Jig Transits, K&E levels)

Portable Water Level (in development)

SLAC Calibration Laboratories:Sector 10: Horizontal and Vertical Comparators

Heavy Fab: K&E Optical Comparator

Instruments and Tooling (2)

6October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Parametric Model:

Stochastic Model:

Least Squares Solution:

Free Net Solution:

Recent Example of Network Design:

Parametric Model:

Stochastic Model:

Least Squares Solution:

Free Net Solution:

Recent Example of Network Design:

Network Design

http://www-group.slac.stanford.edu/met/Align/TechAnalysis/2004/GLAST-Network.pdfhttp://www-group.slac.stanford.edu/met/Align/TechAnalysis/2004/GLAST-Network.pdf

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7October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Warning: This simulated network is based on very crude undulator dimensions. It is made to present typical laser tracker-precise leveling network capabilities.

Further studies should involve in particular real undulator hall drawing and in-situ instrument analysis.

Simulation facts:Tunnel dimensions: 130 m long, 5 m wide and 2 m high

Quad spacing based on current LCLS deck, positioned arbitrarily in the tunnel (1/3 of the width)

Floor is 1.0 m below beamline, wall monuments are 0.75 m above beamline, laser tracker set-ups are 0.4 m and 0.6 m above beamline.

Observation a-priori standard deviations:

Distances 30 µm

Horizontal angles 30 µm / D

Vertical angles 50 µm / D

Height differences 50 µm

Free network approach

Warning: This simulated network is based on very crude undulator dimensions. It is made to present typical laser tracker-precise leveling network capabilities.

Further studies should involve in particular real undulator hall drawing and in-situ instrument analysis.

Simulation facts:Tunnel dimensions: 130 m long, 5 m wide and 2 m high

Quad spacing based on current LCLS deck, positioned arbitrarily in the tunnel (1/3 of the width)

Floor is 1.0 m below beamline, wall monuments are 0.75 m above beamline, laser tracker set-ups are 0.4 m and 0.6 m above beamline.

Observation a-priori standard deviations:

Distances 30 µm

Horizontal angles 30 µm / D

Vertical angles 50 µm / D

Height differences 50 µm

Free network approach

Undulator Hall Network

8October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Undulator Hall Network Simulation

W23 sz = 22 μm sx = 47 μm sy =46 μm

9October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

number of laser tracker set-ups: 17

number of points: 49 (16 floor, 33 wall)

number of triplets:173

number of height differences: 81

number of coordinate unknowns: 198

number of nuisance parameters: 51

number of datum parameters: 4

number of laser tracker set-ups: 17

number of points: 49 (16 floor, 33 wall)

number of triplets:173

number of height differences: 81

number of coordinate unknowns: 198

number of nuisance parameters: 51

number of datum parameters: 4

Network Simulation Facts

10October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Example of Single Total Station Set-up

Single TC2002 Set-up sD = 100 μm sh = 50 μm/D sv = 50 μm/D

“Plate15” sz = 83 μm sx = 108 μm sy = 72 μm

11October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Definition given in LCLS TN-03-08 Definition given in LCLS TN-03-08

Undulator Coordinate System

x,y,z SLAC linac

SLAC-SLC system

x’,y’,z’ LCLS Undulator

12October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

Gather records for last mapping survey and wait for BBA to put all quads in line.

Align the “loose end” of each girder with respect to the next quadrupole.

Solve the last girder loose end.

Gather records for last mapping survey and wait for BBA to put all quads in line.

Align the “loose end” of each girder with respect to the next quadrupole.

Solve the last girder loose end.

Alignment after Installation

13October 20-21, 2005Internal LCLS Undulator Alignment and Motion Review

Catherine LeCocq, SLAClecocq@slac.stanford.edulecocq@slac.stanford.edu

End of Presentation

In conclusion, the current undulator alignment concept is solidifying.

The conventional alignment part is well integrated and relies on previous experience.