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General Design and Alignment Plans for LCLS Girder Support System

This document outlines the general design and preliminary installation plans for the LCLS girder support system, including specifications for support tubes, plates, insulation, and aligning features. Notable components include sand-filled support stands, CAM mover support pockets, and elevation adjustment guides. Detailed steps for anchoring, positioning, and securing components ensure precision in alignment and stability during installation. The guide addresses the use of grout and silica in alignment, including final adjustments based on measurement room data.

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General Design and Alignment Plans for LCLS Girder Support System

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  1. LCLS Girder SupportConcept Design Sushil Sharma and Brian Rusthoven

  2. General Design • 18” Support Tube • 1½” Support Plates • Sand Filled • 3” Wool Fiber Insulation • 1½” Anchor Bolts

  3. Alignment Features • Cam Mover Support Pocket • 1” Beam Direction Movement • 1” Transverse BDM • Removable Z Axes Guides

  4. Preliminary Installation & Alignment Plans • Align Grouting Plates at Lattice Locations • Available Adjustment ± ½” (12.7 mm)

  5. Preliminary Installation & Alignment Plans • Anchor Grouting Plates at Lattice Locations

  6. Preliminary Installation & Alignment Plans • Add Grout under Grouting Plates at Lattice Locations

  7. Preliminary Installation & Alignment Plans • Rough ±5mm position Support Stands on Grout Plates • Final position later from MMR numbers

  8. Preliminary Installation & Alignment Plans • Fill Support Stands • Add Silica sand to stand pipe • Cap Stand with Cap Plate • Add 3” Fiber wool Insulation to stand

  9. Preliminary Installation & Alignment PlansMagnet Measurement Room • Loosely attach CAM Movers to CAM Support Plates using the alignment grooves that utilizing the tight machined tolerances of the CAM Housing

  10. Preliminary Installation & Alignment PlansMagnet Measurement Room • Position Girder on CAM Movers to Specifications Required • Secure CAM Movers to CAM Support Plate • Record dimension between CAM Support Plates for use in final stand positioning

  11. Preliminary Installation & Alignment Plans • Precision position Support Stands on Grout Plates using dimensions obtained from MMR measurements and CAM Mover Support plate grooves.

  12. Preliminary Installation & Alignment PlansFinal Installation • Using dimensions obtained from MMR measurements position CAM Mover Support plate sub-assembly on support stands and precision position using plate mover mechanism.

  13. Preliminary Installation & Alignment PlansFinal Installation • Install Undulator Assembly on CAM Movers using Girder Cart.

  14. Preliminary Installation & Alignment PlansFinal Installation • Remove CAM Support Plate moving mechanism and install Earth Quake Restraints

  15. Preliminary Installation & Alignment PlansElevation Adjustment Guides • Elevation adjustment guides are to be installed prior to lifting the support for height adjustment.

  16. Preliminary Installation & Alignment PlansElevation Adjustment Guides • After the Elevation adjustment guides are installed the Air Jack system can be used to remove most of the weight from the stand.

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