1. Kapton module ass. Spacers for pins 3.6 m 0.963 m 1.25 mm

3. Pin screw Spacer insert 130 mm D 2mm

4. Total weight of one wedge module ~ 5 tons One assume only the central pins working 963 mm 490 mm 9 x 68 pins

5. Load condition changes acording to the orientation of the wedge module in the barrel. A detailed FEM model to be developed for the deformations and the stress between the W plates Gravity load, tension tress Fixed to HCAL Gravity load, shear stress Fixed to HCAL 963 mm 490 mm 9 x 68 pins

6. Shell element for the W plates Beam elements for the pins 1.8 m.45 m 132 mm

7. Gravity load Fixed to HCAL Max deformation, 0.135mm Max stress on pins, 180 MPa

8. Max deformation, 0.027mm Max stress on pins, 110 MPa Gravity load Fixed to HCAL

9. Considerations Deformations are small Max stress on pins, good safety factor with 2mm OD pins Tungsten plates experience low or negligible stress : it is a good in case of a joined plates assembly The pins concept show good performances

10. Long wedge supported from the ends Deformations, 23mm Max stress on pins, 2870 MPa

11. Considerations Deformations and stresses are large The pins concept does not perform for this specific support configuration

13. Sliding of QD0 on the door Support of the beamcal and mask Support of the beampipe 2 m Spacer tube

15. Ion Pumps Needs of specification of the experimental vacuum chamber : valves, bellows, bakeout temp., pumping, supports