1. FRESCA2 Technical Meeting 5-Validation of coil winding with Cu coils Françoise Rondeaux 09/06/2015 1 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting

2. Fabrication process – main steps 09/06/2015 2 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting Conductor insulation Conductor preparation Winding Preparation for the heat treatment: –Assembly of the reaction mold around the wound coil –Transport to CERN Heat treatment Preparation for impregnation : –Nb 3 Sn/NbTi splice soldering –Instrumentation, ground insulation and quench heaters integration Impregnation Coil assembly Magnet assembly At / by Saclay At / by CERN

3. Coil manufacturing 09/06/2015 3 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting Conductor preparation Winding Heat treatment Impregnation Instrumentation Tooling preparation if no gap Tooling preparation with gap Reaction mould assembly Tooling preparation with gap Cf. talk 7 Cf. talk 6 Cu coils SC coils Same winding process with tooling in one or 3 parts Experience with 2 copper coils and 4 prototypes 2 x 4 turns Spools Process Layer jump Voltage tapes : tbc Winding process (vertical compression: tbc) Dimensional control Reaction mould

4. Conductor preparation : validated 09/06/2015 4 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting 1- all the required conductor on the transport spool ( = 135 kg) 2- conductor for the upper layer on the stock spool and layer jump zone defined

5. Layer jump 09/06/2015 5 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting Cable installation in the layer jump groove

6. Winding process – lower layer 09/06/2015 6 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting Lateral compression system used during the winding and to fix the lower layer

7. Winding process – upper layer 09/06/2015 7 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting Interlayer insulation

8. Winding process – vertical stop 09/06/2015 8 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting Vertical stop possible in each part of the coil

9. Reaction mould 09/06/2015 9 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting

10. Thanks for your attention 09/06/2015 10 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting

11. CC3401 : Cu coil type 3-4 CC1201 : Cu coil type 1-2 DR3401, DR 3402 : prototype 1:1 with RRP cable, 2 x 4 turns / dilatation test DP3401, DP 3402 : prototype 1:1 with PIT cable, 2 x 4 turns / dilatation test 09/06/2015 11 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting

12. FRESCA 2 dipole magnet 09/06/2015 12 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting

13. FRESCA 2 dipole magnet 09/06/2015 13 CEA-Irfu-SACM-LEAS - 5-Rondeaux- FRESCA2 Technical Meeting