1. Girder-Magnets Installation
Maher Al Shehab , Thaer Abu Hanieh
Installation Team
Mohammad Khalileh
Ismael Alzou’bi
Tamer Alzou’bi

2. Girder Base Plate Installation
Base Plates Position Tracing inside Tunnel . (Laser Tracker )
Laying out Cutting Circumference for the base Plate Position on the Slab .
Cutting and Removing the 8cm Layer of the Slab. Using Hilti DCH 300 Diamond Cutter
Anchor Installation.
Baseplate Level Adjustment
Base Plate Plan-metric Adjustment

4. Baseplates Installation- Bottom Nuts Leveling
Alignment Results
Base Plate Level Accuracy ?????

5. Baseplates Installation- Checks Before Grouting
Anchors to support the base plates
single base plate
base plates pre-aligned in the main ring
of top layer of the floor
Cracked Zones Treatment
Cracks on the Top layer of the floor Due o the Alignment Frame Fixation

6. Baseplates Installation- Grouting
-Grouting Material: Sikadur®-42 MP Slow 3-part, Multi-purpose Epoxy Grouting System .
High early strength
Ready-to-mix, pre-batched units
Non-shrink
Stress and impact resistant
High compressive strength
High vibration resistance
Low coefficient of thermal expansion

7. Baseplates Installation- Check Of position and Level After Grouting
(Girder 14 Before Epoxy - Girder 14 After Epoxy)
Point Name dX dY dZ 79
-0.19
0.33
0.14 80
-0.16
0.34
0.36 81
0.25 82
-0.21
0.29
0.16 83
0.3
0.19 84
(Girder 14 After Epoxy - Girder 14 After Removing Nuts)
-0.01
0.02
0.01
-0.03
0.03
-0.02
0.04

8. Girder Installation On Tunnel
- The Girder was moved using the Crane As Backup Solution an Air Cushion system were procured and tested in case of any surprise coming from the Crane

9. Magnets Installation – Dipole Supports Hole Size Modification
For All Dipole Magnets the Support Fixation Hole Expanded to 18mm.
Except Dipoles No. 7,11, and 14 Expanded to 20mm
Using Magnetic base Drill

10. Magnets Installation – Girder Deformation Due to Dipole Displacement During Arc Chamber Installation
Deformation Y Direction, Dipole Final Position
Girder Deformation Y Direction ,Dipole Displaced Position

11. Magnets Installation
Before Installation All Multipole Magnets were inspected Visually For any movement During Shipping And Handling Specially the Base to magnet Body using a painted marks placed after measurements at CERN .
All Shock Indicators were Visually Check upon receiving the magnets at SESAME site and were found ok

12. Dipole Chamber Installation on Girder
M. Magnets Installation
Removal Of Upper Halves of M. Magnets
Dipole Installation.
Dipole Transverse Movement
Chamber Installation
Dipole Movement to the Final Position

17. Girder – Girder Alignment Strategy
Struts and Vertical Wedges /Girder –Girder Alignment
3 Pint Contact During Alignment of Girder Top Plate
After the placement of the magnets on the girder top plate the only required alignment is the girder to girder alignment . Which will be accomplished through the vertical, transverse and longitudinal alignment wedges and struts placed between the girder top plate and the girder pedestals.
Possible Future modification on Girder to Girder Adjustment is to install Wedges system for plane metric alignment for better access

18. Tl2-Installation Part Available Quads
Hydraulic Tested All Hoses Replaced
Quad Girders
New Girder Has Two Quads and One Corrector
Horizontal Bending Magnets
rotated 90o
Vertical Bending Magnets
New
Thick Septum
new girder design, New Fiducials Installed , Bottom Modified For Adjustment
Injection Septum