S. Caspi, LBNL HQ Progress and Schedule Shlomo Caspi LBNL LARP Collaboration Meeting – CM13 Port Jefferson November 4-6, 2009

S. Caspi, LBNL The LARP ProgramThe LARP Program HQ design highlightsHQ design highlights Coil fabricationCoil fabrication Magnet statusMagnet status SummarySummary Outline LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL Reached 238 T/m LARP - Magnet R&D Program 1. Nb 3 Sn Technology - TQ Conductor studies Coil fabrication Mechanical support Modeling tools Quench protection 2. Length scale-up - LQ Coil technology Quench protection 3. Design optimization - HQ Larger aperture higher energy and forces Accelerator quality LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL Completed HQ tasks LARP CM 13, Port-Jefferson November 4-6, 2009 Magnetic design: field quality, conductor field Mechanical design: Tooling : Winding Curing Reaction Impregnation Cable: Size Winding Alignment and assembly Ground plane insulation Traces – voltage taps and protection heaters Pre-stress, cool-down, power 4

S. Caspi, LBNL HQ Collaboration LBNL - Mechanical design, coil winding, curing, reaction, instrumentation, impregnation and magnet assembly. BNL - Coil reaction, instrumentation, and impregnation. FNAL – Magnetic design, end spacers design and fabrication. LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL Design Concept and Guidelines C oil alignmentC oil alignment –Collars and keys for azimuthal alignment (not for pre-stress) –Maintain full azimuthal contact between coil-island and collar –Bladder and key locations to balance layers pre-stress Shell based Aluminum structure -Shell based Aluminum structure - final pre-stress during cool-down LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL Coil aperturemm120 Overall magnet diametermm570 Jc 12T, 4.2 K, RRP 108/127A/mm Maximum gradient 4.4 K/1.9 KT/m199/219 Maximum current 4.4 K/1.9 KkA17.7/19.5 Peak field 4.4 K/1.9 KT13.9/15.2 Max. stored energy 1.9 KMJ/m1.4 Max F θ forces 1.9 K, IL/OLMN/m-1.92/-3.2 Maximum axial force per endMN1.4 HQ Parameters LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL HQ Model - ANSYS 3D Analysis 1.Axial pre-load 2.Azimuthal pre-load 3.Cool-down 4.Excitation LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL HQ - Average Azimuthal Stress Location  (MPa) Assembly  (MPa) Cool-down  (MPa) 220 T/m Layer 1 pole-turn  Average stress in HQ is 140 MPa but local stress expected to exceeds 200 MPa LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL  R of 78  m * Large scale factor to simulate displacements Field Quality - With Lorentz forces at 219 T/m LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL Protection Protection Parameters (Quench Pro): -Detection time = 5 ms -Heater delay time Layer 1: heat diffusion: 15 ms Layer 2: heat diffusion + propagation = 20 ms - Coverage = 60 % - Quench propagation velocity = 10 m/s - Dump R = 50 mohm Hot spot temperature: K short sample: 322 K -1.9 K short sample: 400 K 11

S. Caspi, LBNL Coil Preparation and Fabrication Wire EDMRapid Prototyping (RP)CAD LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL Winding and Curing Coil WindingCuring Cured Layer 1 LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL Reaction and Impregnation 72 hr at 210 C 48 hr at 400 C 48 hr at 665 C Reaction Tooling Impregnation Tooling Post Reaction: NbTi Leads, VT, SG. LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL Impregnated Coil (PC1) LARP CM 13, Port-Jefferson November 4-6,

S. Caspi, LBNL HQ Coil Status LARP CM 13, Port-Jefferson November 4-6, 2009 Unit Length (one coil layers 1 & 2, 81m net ) 16Kg/UL –Add 19m of lead = 100m or 16Kg/UL 16

S. Caspi, LBNL 17 HQ Coil Status Practice coils 1 and 2 completed, PC1 instrumented ready for mirror test. Coil 3 - start reaction November 9 (LBNL) 3 – Impregnation complete December 11 (LBNL) Coil 4- ready for reaction (BNL) 4 - Impregnation complete December 23 (BNL) Coil 5 – Wind and cure complete November 16 (LBNL) 5 – start reaction Dec (LBNL) 5 – Impregnation complete January (LBNL) Coil 6 – Wind and cure complete December 23 (LBNL) 6 – Start reaction January (BNL) 6 – Impregnation complete February (BNL)

S. Caspi, LBNL 18 HQ Structure, Assembly, Test - Status Collars assembly completed (LBNL). Pads assembly November 30 (LBNL). Yoke assembly November 30 (LBNL). Shell-Yoke subassembly Dec 15 (LBNL). HQ cool-down test (dummy coils) January 2010 (LBNL).. HQ01a final assembly March (LBNL).. HQ01a test March (FNAL).

S. Caspi, LBNL HQ Summary A 120 mm bore, Nb 3 Sn quadrupole for Phase II is under construction With a current density conductor of 3000 A/mm 2 (12 T, 4.2 K) the magnet is expected to reach 15 T at 1.9 K (219 T/m) The magnet is optimized for alignment and field quality Assembly and pre-stressed with an outer Aluminum shell and “key and bladder” technology. Final assembly and testing Q LARP CM 13, Port-Jefferson November 4-6,