E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot, X. Sarasola

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Outline 2 Coil NameDescriptionStatus SQXF-000First Practice (Cu)Splice/Instrumentation SQXF-101Second Practice (Nb3Sn – Low grade)Reaction SQXF-102First Coil (Nb3Sn)Winding (starting OL) 1.Status 2.Ceramic binder to improve cable mechanical stability during winding? 3.Pole gaps 4.Coil parts 5.Trace QA

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Coil 000 Nb 3 Sn – NbTi splice done Solder: Sn 96 Ag 4 Flux: MOB39 Copper stabilizer (Instead of an additional NbTi lead) 3

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Coil 101 Reaction We are using this coil to optimize the temperature cycle in the oven. Heat treatment completed 2 nd heat treatment done with short plateaus 3 rd heat treatment to be done only with first plateau 4

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Coil 102 IL wound using the tool, but without applying ceramic binder at the ends (winding in the favourable direction, no problems of mechanical instability) 5

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Coil 102 IL cured 6

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Ceramic binder during winding CTD-1202X From the technical specification: Curing 1 hour at 80°C + two hours at 150°C We notice that if we cure at T < 150°C, after 10 minutes the cable is still wet and the insulation is not rigid. 7

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Ceramic binder during winding PROCEDURE Paint binder on the cable Heat the cable on one side, and time 3 mins (after 3 mins, the cable temperature is ~150°C) Heat the other side 3 mins. The cable is still wet and the insulation is not rigid. We cut the insulation and the fibres are not glued (very similar behaviour in the region with and without). 8

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Ceramic binder during winding 9 We repeated the process, heating up to 250°C, but the cable is still wet and the insulation is not rigid.

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Pole gaps 10 Initial pole gap set for each coil Coil 000 Cu: 3 mm Coil 101 Nb 3 Sn lowgrade: 7.5 mm Coil 102 Nb 3 Sn: 5 mm

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Pole gaps 11 Check of pole gap during fabrication Initial GAP (set before winding) [mm] GAP just after curing and release tension [mm] GAP before heat treatment [mm] GAP after heat treatment [mm] Coil 000 (Cu) * Coil 101 (Nb 3 Sn low grade) 7.56 Coil 102 (Nb 3 Sn) 5 * gap after heat treatment evaluated by sight (no possibility to measure it): however the gap is almost closed.

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Pole gaps 12 Pole gap on Coil 000 (Cu) after heat treatment

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Coil Parts CERN Pole and end-shoe extension for coils missing, Miao, when do you thing you will be able to ship them? End parts Coil 3: Expected delivery calendar week Coil 4: Expected delivery calendar week 41 LARP End parts Coil 5: End parts shipped CERN  FNAL 21/09/2014 Coil 6: Company  CERN, Calendar week 40 Coil 7&8: Company  CERN Calendar week 42/43 13

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Coil Parts Company confirms that they use oil only for the machining of the treaded holes. They do not have the means to do ultrasonic cleaning by themselves. We will clean the parts at CERN using a standard procedure developed at CERN for cleaning Tungsten (porous material) LHC- VN-FP-0001 EDMS Degreasing by immersion in Topklean MC 20A with ultrasonic agitation at 40 °C; Degreasing by immersion in Promosolv 71IPA with ultrasonic agitation at 59 +/- 4°C; Degreasing in vapour phase in Promosolv 71IPA; Vacuum firing. 14 Oil trapped inside the parts (coming from the wire EDM and machining operations after the SLS)

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Trace QA Test set up 15

E. Cavanna, N. Bourcey, P. Ferracin, S. Izquierdo Bermudez, J. Mazet, J. C. Perez, Francois-Olivier Pincot X. Sarasola Trace QA Test results 16