H. Felice, D. Cheng, H, Pan, M. Reynolds, A. Pekedis, T. Lipton MQXFS1 update 07/27/2015

Schedule from 06/01 207/27/2015H. Felice et al. Completed under review On track starting Completed Disassembly SG instrumentation On track 103/104 at LBNL 3 and 5 QA 103 and 104 connectors and QA Assembly prep Coil pack insertion tooling test

Updated schedule on 06/15 07/27/2015H. Felice et al.3 Missing A01 tap on CERN coils All wires coming in the center Tech time off New tech training Weather Roll-over tooling fine tuning Coil assembly tooling load tested, Practice with dummy coils Reduced from 2 to 1 week

Updated schedule on 06/19 07/27/2015H. Felice et al.4 Vtap Strain relief of SG wiring Meeting planned on June 24th Starting today

Updated schedule on 07/06 07/27/2015H. Felice et al.5 Compensation for different coil size

Radial Shim summary 07/27/2015H. Felice et al.6 From coil OR to collarL03C103L05C104 Kapton Ground plane insulation0.005” (0.125 mm) Coil specific shim ” mm ” mm Fuji paper (Low pressure)0.007” (0.175 mm) G105x0.009”+0.005” (1.3 mm)

Coil pack assembly #1 with Fuji paper 07/27/2015H. Felice et al.7 Nominal Radial shim = ” = mm Correction from CMM Radial shim should be: 0.064” ”=0.0615” Actual stack in MQXFSD1= 0.062” = 1.57 mm from coil OR to collar IR: 0.005” ( coil GPI kapton) ” (Fuji) + 5x0.009”+0.005”(G10) Used for MQXFS1

1 st collar pack 07/27/2015H. Felice et al.8 Coil L05 Coil L03 Coil C104 Coil C103 During assembly SG show very slight compression Coil C103 shows slight tension Lower compression of coil 103 Despite distributed pressure, all coils show higher compression points at the pole

1 st collar pack 07/27/2015H. Felice et al.9 Coil L05 Coil L03 Coil C104 Coil C103 During assembly SG show very slight compression Coil C103 shows slight tension Lower compression of coil 103 Despite distributed pressure, all coils show higher compression points at the pole

Coil pack assembly with Fuji paper 07/27/2015H. Felice et al.10 1 st MQXFS1 collar pack Actual stack in MQXFSD1= 0.062” = 1.57 mm from coil OR to collar IR: 0.005” ( coil GPI kapton) ” (Fuji) + 5x0.009”+0.005”(G10) Used for MQXFS1 2 nd collar pack build High compression at the pole => coil oversized wrt collar Removal of 1 mil radial shim 0.007” Fuji replaced by 0.005” G ”Kapton Alignment keys not shimmed No Fuji diagnostic but SG diagnostic sensitive enough to monitor the change

Updated schedule on 07/27/ /27/2015H. Felice et al.11 Repair Coilpack started today Incident

Coilpack#3: Radial Shim summary 07/27/2015H. Felice et al.12 From coil OR to collarL03C103L05C104 Kapton Ground plane insulation0.005” (0.125 mm) Coil specific shim ” mm ” mm Fuji paper (very low pressure)0.007” (0.175 mm) G105x0.009” (1.3 mm) Total radial shim: 0.052”+0.005”=0.057” (1.45 mm)