1. Baby Mind C OIL DESIGN AND ASSEMBLY SCENARIOS Helder Silva Phillipe Benoit Alexey Dudarev Gabriela Rolando Herman ten Kate Etam Messomo Laurent Nicola Franck Cadoux Alain Blondel 19 April 2016

2. One slit Old design Concept design Key aspects: Two half coils Aluminum stripes B RIEF HISTORY 2

3. Two slits Current design B RIEF HISTORY Prototype design Key aspects: Main iron plate not split 4 side plates for flux return Aluminum stripes redesigned Assembly and handling procedures tested 3

4. C URRENT DESIGN Similarities to prototype Side plates for flux return Two slits Conductor sewing arrangement Connectors’ interconnections Insulation * Prototype photos 4

5. C URRENT DESIGN Changes to the prototype Dimension of the side plates Prototype 35 x 210 cm 2 Purchased plates 100 x 200 cm 2 Final coils 32.5 x 200 cm 2 Manufacturing process ( water jet vs milling) Handling solution 4 hoists bolted directly to the side of the plate PrototypeCurrent design 5

6. C URRENT DESIGN Features added to final coils: Small chamfer for extra safety Small iron plates are used for alignment of the first and last stripe. Insulation positioned from the 1 st stripe. First and last stripe held in place by an FR4 slab. Side bolts for electronics Reference number engraved 6

7. C URRENT DESIGN Features added to final coils: Top and bottom insulation cover Two holes for assembly in the experiment Detector supports “ Floating” detector blocks Intermediate supports Extra holes for temporary feet 7

8. C OIL HANDLING Two main operation: Horizontal translation 4 hoists in each corner Beam perpendicular to slits Slings at 45° Turn over of the coil Highest stress when horizontal 8

9. C OIL HANDLING Is the conductor and insulation safe during handling? 0.55 mm step between the center and the top/bottom of the coil during turn over What happens if we place a single Al stripe in the center of the coil? Linked the top and bottom of the coil to the center part. Relative displacement in the slit in the center plane forced to be 0mm Max relative displacement dropped to 0.1 mm Force in the links is 175 N Handling the coil is not an problem for the conductor or insulation 9

10. C OIL ASSEMBLY 1.Machine plates 2.Clean plates 3.Deburring and chamfering 4.Painting plates 5.Store Plates 6.Lower big plate on supports 7.Put the top small plates in position, align and bolt them 10

11. C OIL ASSEMBLY 3.Deburring and chamfering 4.Painting plates 5.Store Plates 6.Lower big plate on supports 7.Put the top small plates in position, align and bolt them 8.Bolt feet and hoists 9.Turn over the plate and place it on the assembly stand 10.Insulate slits and bottom and top edges with duct tape 11

12. C OIL ASSEMBLY 6.Lower big plate on supports 7.Put the top small plates in position, align and bolt them 8.Bolt feet and hoists 9.Turn over the plate and place it on the assembly stand 10.Insulate slits and bottom and top edges with duct tape 11.Insert pre-bent stripes on the slits 12.Bend the stripe on the opposite side 12

13. C OIL ASSEMBLY 8.Bolt feet and hoists 9.Turn over the plate and place it on the assembly stand 10.Insulate slits and bottom and top edges with duct tape 11.Insert pre-bent stripes on the slits 12.Bend the stripe on the opposite side 13.Repeat process for all 50 Al stripes 14.Place notched insulation on top and bottom 15.Connect the stripes together using the linking element 13

14. C OIL ASSEMBLY 9.Insert pre-bent stripes on the slits 10.Bend the stripe on the opposite side 11.Repeat process for all 50 Al stripes 12.Place notched insulation on top and bottom 13.Connect the stripes together using the linking element 14.Move coil from vertical stand to horizontal position 15.Weld stripes to the linking parts 16.Insert plastic cover 17.Move coil to storage Aluminum welds 14

15. A SSEMBLY EXPERIMENT 1.Build the frame and install support beams on the floor 2.Install the rail system and bring the trolley down the pit 15

16. A SSEMBLY EXPERIMENT 1.Build the frame and install support beams on the floor 2.Install the rail system and bring the trolley down the pit 3.Lower first coil with detector and place it on the trolley 16

17. A SSEMBLY EXPERIMENT 1.Build the frame and install support beams on the floor 2.Install the rail system and bring the trolley down the pit 3.Lower first coil with detector and place it on the trolley 4.Bring the trolley under the frame 5.Remove trolley and take coil to its final position 17

18. A SSEMBLY EXPERIMENT 1.Build the frame and install support beams on the floor 2.Install the rail system and bring the trolley down the pit 3.Lower first coil with detector and place it on the trolley 4.Bring the trolley under the frame 5.Remove trolley and take coil to its final position 6.Connect coil to the frame ( design to be finalised) 7.Attach the first detector to the frame or the coil 18

19. A SSEMBLY EXPERIMENT 3.Lower first coil with detector and place it on the trolley 4.Bring the trolley under the frame 5.Remove trolley and take coil to its final position 6.Connect coil to the frame ( design to be finalised) 7.Attach the first detector to the frame or the coil 8.Repeat procedure for remaining coils 9.Remove trolley and rails 19

20. A SSEMBLY EXPERIMENT 6.Connect coil to the frame ( design to be finalised) 7.Attach the first detector to the frame or the coil 8.Repeat procedure for remaining coils 9.Remove trolley and rails 10.Reposition last coils if necessary Note: Access to the last coils may not be trivial Recommended length of detector 2.7m (Air gap of 1.1m in total) Layout shown has the MAXIMUM possible air gap of 2.1m 20