April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Resistive magnet measurements & coils, manufacture and calibration equipment Didier Cornuet & Juan Garcia

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Magnetic Measurements needs and activities: 1.Alignment: axis & angles 2.Local fields, harmonics 3.Integral fields, harmonics… Instruments available Benches at our disposal and geographic locations Fabrication and Calibration laboratory and synergies Geometric measurements: Leica survey Proposals for future Overview

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Activities Magnetic measurements of resistive magnets Equipment and systems for all magnetic measurements : development, specification, procurement, evaluation. Coil winding and modules assembly & calibration. Associated reference magnets & facilities. SMA18 & SM18 field measurement equipment: development & manufacturing. MQ-MB factory magnetic measurement equipment & CERN reference systems.

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation –Dipole Industry Magnetic Measurements (DIMM) –Quadrupole Industry Magnetic Measurements (QIMM) –Long shafts for MB (13 x 1.2 m) –Long shafts for MQ ( 6 x 0.75 m) –AC moles (warm & cold) –Polarimeters –Set of Hall probes (B3-B5, probe arrays) –Single and Double Stretched Wire systems –Numerous sets of search coils Instruments

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation –They take place in two halls: 867-RH29, 6 Benches and 5 (6) pulsed Power supplies (from 250 A to 6 * 500 A). 867-RC07, Air conditioned room (160 m2) with one Power supply (600 A). –Magnetic measurements of magnets for: Linacs, Booster, PS, AD, CTF3, SPS, LHC, CNGS, LEIR, CLIC and external labs. –Magnetic conformity of repaired or rebuilt magnets –Measurements of prototypes Measurements for resistive magnets (I)

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Measurements of Resistive magnets (II) AT/MTM/RM MEASUREMENTS PROJECTS LHC MBW, MBXW(D1), MCBW, 15 MQW MBXWS, MBXWT, 32 MQW End of 52 MQW series, MBW, 10 H & V correctors for SPS & LHC Dipoles MBW, MBXW SPS 9 Repaired MB & MQ2 repaired MQ8 Repaired MB & QP PS/LINAC4 4 Injection Quadrupoles Field map of main unit 2 Pulsed elliptic quadrupoles Quadrupole Q120 Permanent magnet quadrupole LEIR Triplet (3 Quadrupoles) 3 solenoids CTF3 Type II Dipole QL3Combined H/V corrector Wiggler, Quadrupole, Sextupole, 4 Septas CNGS MDG dipole DIAMOND Quad INFN/CNAO SC sextupole Prototype dipole

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation 1.LINAC harmonic bench (DC quads, for pulsed quads no longer operational). 2.Harmonic bench for large dipoles &quadrupoles 3.Calibration bench for coils (up to 2 m long, also possible field maps for C type magnets ) 4.Helmholtz and Gradhelm coils (surfaces and distances) 5.Single stretched wire for small quads (not operational) 6.3D bench for field scanning 7.PS bench for dipoles, quadrupoles and sextupoles (DC and pulsed modes) 8.LHC harmonic bench 9.SPS dipole bench 10.SPS quadrupole bench 11.Double stretched wire bench 12.Field mapping bench (DC and pulsed mode) Measurements stands for resistive magnets

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Magnetic measurements of resistive magnets (prototypes and series samples) during 2005 End of series measurements of the 52 MQW quadrupoles MBW dipole for LHC Pulsed elliptic quadrupole for the PS gamma-jump 3 solenoids for LEIR 10 hor. and vert. corrector magnets for SPS and LHC PS spare unit without and with shims and new PFW

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation –MTM group own 2 Laser Trackers for survey –AC mole for magnetic and mechanical axis (warm and cold) –SSW for magnetic axis and roll angle –Synergy with other groups having the same equipment Magnetic Alignment measurements Leica Laser tracker Cold Bore Tubes Connection Side D10 D11 Tripod AC Mole Lyre Side

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Performed in two labs: B.230 & I8 nearby –Coil manufacture –Assembly and micro connections –Calibration in ref. dipole : surface and parallelism –Calibration in ref. quadrupole: radii –Moles and shafts assembly and their calibrations –Maintenance of equipment –Consultancy inside and outside CERN. Activity of coil manufacture and calibration

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation 50 mm 250 mm Winding Lab at Building 230

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Coil interconnection and cabling Example of an Interconnection scheme: 10 strand wire in a 20 strand connection plate Connection plates embedded in coil core, left: single wire, right: 20 strand wire Preparation for soft soldering of a 20 strand connector Signal cables connected to their coils All coils of a sector connected 4 mm 12 mm 10 mm 50 mm

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Magnetic Calibration The laboratory: Short reference quadrupoles [0.3m, 0.5m] Reference dipole [2.5m] Power supply for reference dipole Reference quadrupole [1.5m] 15m cryodipole Assembly Soft soldering Grinding -Several reference magnets installed in former ISR tunnel, good stabilization in temperature

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Dipole reference magnet: -Effective aperture: l=2.5m, h=80mm, w=300mm -Field: 1T (stab.:10 -5 T), monitored continuously with NMR probe and periodically mapped -Field angle aligned to <0.1 mrad w/r gravity -Used for calibration of coil area, parallelism and absolute angle (up to 5 coils simultaneously) -Overall uncertainty: 2x10 -4 (repeatab.: 5x10 -5 ) Magnetic Calibration (I8) Dipole Rotation support Integrators and PC NMR probe Quadrupole reference magnet: -Magnet aperture: l=1.5m, Ø 125mm, -Field gradient of 8.6 T/m 480 A) -Used for calibration of coil radii (up to 5 coils simultaneously) -Overall uncertainty: 5x10 -4 Quadrupole Integrators and PC Rotation and centering support Lateral stroke Sensor (res mm)

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Measuring Head Assembly (bldg 230) Prototyping and repair workshop: Turning… …milling… …drilling Adjustment table for Level meters Dynamic gluing table UV curing for coil gluing

April 12, 2006 J. Garcia Workshop on Test Facilities and measurement equipment needed for the LHC exploitation Proposals for future Consolidate 230 & I8 labs for fabrication & calibration. Unique facility to make coils. Move some benches from Prevessin (calibration, 3D, Linac, small SSW) Add to I8 functionality to measure middle size magnets or prototypes by improving infrastructure (repair of the crane rails, and better communication with B.181) Keep benches associated to big Power Supplies in Prevessin for PS and SPS