Superconducting Magnet Division s Phenix Solenoid Magnet Design

Superconducting Magnet Division s. Phenix Solenoid Magnet Design and Fabrication May 22, 2015 M. Anerella LESHC Review 5 -22 -15 M. Anerella Slide No. 1

Superconducting Magnet Division Conductor Specifications Heavily stabilized ~ 300% margin LESHC Review 5 -22 -15 M. Anerella Slide No. 2

Superconducting Magnet Division Solenoid Coil Specifications Pasquale Fabbricatore*, April 15, 2015 email**: the external layer is done with 188 (thin)+159 (thick) + 189 (thin) =536 turns The inner layer: 184 (thin)+164 (thick) + 183 (thin) =531 turns LESHC Review 5 -22 -15 M. Anerella * Ansaldo ** And also “as-built” notes on coil drawing Slide No. 3

Superconducting Magnet Division • Coil Mandrel – – – Aluminum 5083 Wall: 45 mm / 65 mm OD Diameter: 3060 mm Cooling tubes welded 11 parallel tubes 20 mm ID, 30 mm OD • Tie Rods – – Supports the cold mass Inconel 718 6 x Axial Tie-rods 16 x radial Tie-rods LESHC Review 5 -22 -15 M. Anerella Magnet Specifications • Cryostat Vacuum Vessel – – – Wall: Aluminum 5083, 35 mm / 50 mm Outer. Wall: OD 3. 540 m, L=3. 790 m Inner. Wall: ID 2. 840 m, L=3. 790 m Annular End Flanges: Al-5083, 50 mm Tie-rod attachments • Copper Tubing • Stainless tubing • Thermal Shields, Aluminum – 8 x panels – Inner diameter – Outer diameter Slide No. 4

Superconducting Magnet Division Coil Construction • • Coils wound into an external aluminum support cylinder Internal splices: 1. 5 m weld of aluminum edges + 0. 2 m gap then 0. 3 m solder of aluminum faces on both sides of weld • • Coils epoxy impregnated into support cylinder after winding Exiting leads: aluminum removed and Nb. Ti soldered to heavy copper stabilizer leads (overlapping aluminum) LESHC Review 5 -22 -15 M. Anerella Slide No. 5

Superconducting Magnet Division Coil Cooling • Coils are in insulating vacuum • Conductively cooled via external support cylinder • Aluminum Cooling tubes • Ø 30 mm x 5 mm thick, flattened to 22 mm • Stitch welded to Aluminum mandrel • 11 parallel circuits • Manifolds top & bottom LESHC Review 5 -22 -15 M. Anerella Slide No. 6

Superconducting Magnet Division LESHC Review 5 -22 -15 M. Anerella Outer Heat Shield (similar construction for Inner Heat Shield) Slide No. 7

Superconducting Magnet Division Coil Mechanical Support Inconel Tie Rods: • 8 tangential, 3 axial, at each end • Upper tangential rods (8 total) loose at 300 K • Lead End axial rods (3) loose at 300 K • Thermal contraction of Al at 4 K tightens rods, shifts coil • Motion accommodated by spherical, belleville washers LESHC Review 5 -22 -15 M. Anerella Slide No. 8

horizontal LESHC Review 5 -22 -15 M. Anerella Case 3 w/ 1 side simply supported N. O. + max. radial (H) & axial misalignment + earthquake N. O. + max. radial (V) & axial misalignment + earthquake Normal Operation (external pressure + gravity) N. O. + max. radial & axial misalignment Support Loading (Ansaldo) Superconducting Magnet Division vertical Allowable stress = 69 MPa (ASME VIII Table UNF-23. 1) Slide No. 9

Valve Box • Vacuum vessel+ Superconducting – Design pressure: Magnet Division – internal 1 barg [psia], external 1 atm • • – Design Temperature: 300 K – Diameter: 970 mm, 38. 25 inch – Length: 860 mm, 33. 85 inch – Wall: 10 mm, 0. 393 inch – End plate: wall 20 mm, – Volume: 635 Liters – Stainless Steel 304 Chimney – Diameter: 273 mm, 10. 75 inch – Length: 1065 mm, 42 inch – wall 9. 3 mm, 0. 366” – Volume: 63 Liters – Stainless Steel 304 Phase separator – Design pressure: 6 bara [87 psia] – Design Temperature: 4 K to 300 K – Diameter: 273 mm, 10. 75 inch – Length: 440 mm, 17. 325 inch – Cylinder 10. 75 x 0. 366” wall 10 NPS sch 40 – End plate: wall 30 mm, 1 -3/16” – Volume: 26 Liters LESHC Review 5 -22 -15 Stainless Steel 304 L M. –Anerella • Internal Piping • Stainless Steel tubing • 10 mm, 12 mm, 14 mm, 16 mm • Copper Tubing • 10 mm, 18 mm, 22 mm • Used to cool the SC & thermal shield • Current Lead Pots • Design pressure: 6 bara [87 psia]; • Design Temperature: 4 K to 300 K • Diameter: 141. 3 mm, 5. 5625 inch • Length: 367 mm, 14. 45 inch • Cylinder: 14. 45” x 1/8” wall • End plate: wall 30 mm, 1 -3/16” • Volume: 2 x 6 L =12 Liters Slide No. 10 • Stainless Steel 304 L

Superconducting Magnet Division Incoming inspections & tests Passed so far 300 K Coil Electrical Testing: • R, L and Q • 400 V Impulse test • 520 V Hypot Helium circuits (2) vacuum leak check Helium circuits (2) pressure test (81 psig - 6. 6 bar) Cryostat vacuum leak check LESHC Review 5 -22 -15 M. Anerella Slide No. 11

Superconducting Magnet Division Back-up slides LESHC Review 5 -22 -15 M. Anerella Slide No. 12

Tie rod strain gauge installations Superconducting Magnet Division LESHC Review 5 -22 -15 M. Anerella Slide No. 13

Superconducting Magnet Division Strain Gauge Info • SC Solenoid Magnet is at SLAC • BNL heat shield shipping restraints are fabricated & received at SLAC • SLAC has: • Installed BNL restraints • Tightened coil supports • SLAC will: • Rig magnet onto truck LESHC Review 5 -22 -15 M. Anerella Slide No. 14