1. CEA KE 2775 progress meeting WP3 – FRESCA 2 Magnet
Françoise Rondeaux – Paolo Ferracin
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

2. Status 2 copper coils already partially done : CC3401 (type 3-4):
winding OK, sent to CERN (25/06/2013)
heat treatment OK
impregnation OK
CC1201 (type 1-2)
winding OK, sent to CERN (07/01/2014)
impregnation in progress
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

3. Modified winding / reaction tooling
We have received the modified winding / reaction tooling (in 3 parts) for type 3-4.
Test on coil (4+4 turns of RRP cable) with modified tooling + large gaps (DR3401) :
OK, cf. next slide
Test on coil (4+4 turns) with modified tooling + adjusted gaps (DR3402) :
winding OK, waiting for the new guiding rings
Procurement of the modified tooling for type 1-2: delivery in early April
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

4. DR3401 It moved! 1,9 mm sym side + 1,3 mm asym side
¾ ceramic guiding rings broken
will be modified
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

5. Milestones
2 options: 1) strategy maintained with intermediate test.
2) without intermediate test (and CC3402).
Planning modifications (option 1): - modifications in tooling after DR3401.
- modified tooling 1-2 delivery delayed.
- need to wait disassembly of coil pack CR12+CC34
Option 1
Kick-off meeting 
Today
3.1 : 1 Cu coil type 3-4 with modified tooling
March 2015
June 2015
3.2 : 2 Nb3Sn coils type 1-2 for FRESCA 2 magnet delivered
September 2015
December 2015
3.3 : 2 Nb3Sn coils type 1-2 tested with 2 Cu coils
February 2016
May 2016
3.4 : 2 Nb3Sn coils type 3-4 for FRESCA 2 magnet delivered
3.5 : FRESCA 2 magnet tested
August 2016
November 2016
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

6. Milestones
2 options: 1) strategy maintained with intermediate test.
2) without intermediate test (and CC3402).
New order for the coils fabrication
Cable available for CR3401 in March?
Option 2
Kick-off meeting 
Today
3.2 : 2 Nb3Sn coils type 1-2 for FRESCA 2 magnet delivered
September 2015
November 2015
3.4 : 2 Nb3Sn coils type 3-4 for FRESCA 2 magnet delivered
February 2016
3.5 : FRESCA 2 magnet tested
August 2016
June 2016
For both options: - end of test DR3402 : new guiding rings
- coating of the post
- availability of new horseshoes (tooling) and cable supports :
validation of splicing zone
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

7. Option 1
Option 2
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

8. Thanks for your attention
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

9. FRESCA 2 dipole magnet 17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

10. FRESCA 2 dipole magnet 17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3

11. Description Complete the FRESCA 2 coil manufacturing and test.
Prolongation of EuCARD HFM task 3 + exceptional contribution of France to CERN.
5 steps:
manufacture of a Cu coil type 3-4 using the modified equipment (cf.slide 7)
manufacture of 2 Nb3Sn coils of type 1-2.
assembly and the test at CERN of 2 Nb3Sn coils type 1-2 in the structure with 2 Cu coils type 3-4.
manufacture of 2 Nb3Sn coils type 3-4 required to complete the dipole FRESCA 2.
assembly and the test at CERN of the dipole FRESCA 2.
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3
17/12/2014

12. Fabrication process – main steps
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 :
Nb3Sn/NbTi splice soldering
Instrumentation, ground insulation and quench heaters integration
Impregnation
Coil assembly
Magnet assembly
At / by Saclay
At / by CERN
17/12/2014
CEA-Irfu-SACM-LEAS - F.Rondeaux -CEA KE2775 progress meeting - WP3