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Coil End Design, Winding Test and End Parts Fabrication

Coil End Design, Winding Test and End Parts Fabrication. Susana Izquierdo Bermudez 2 nd Joint HiLumi LHC/LARP Annual Meeting 15/11/2011. Coil Ends Design Strategy. Exchange the set of designed spacers. Common parameters. z 4. z 3. z 2. d min. z 1. L total. Cable dimension

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Coil End Design, Winding Test and End Parts Fabrication

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  1. Coil End Design, Winding Test and End Parts Fabrication Susana Izquierdo Bermudez 2nd Joint HiLumi LHC/LARP Annual Meeting 15/11/2011

  2. Coil Ends Design Strategy Exchange the set of designed spacers

  3. Common parameters z4 z3 z2 dmin z1 Ltotal Cable dimension Cross Section Number of Blocks on the coil ends Number of Turns per Block z-position of the first cable on each block, total length of the ends and min. length of the spacers Geometry of the layer jump

  4. Based on CERN Xsec ROXIE Coil Ends Design @ CERN 1st approach (as HQ): z-position of the blocks optimized to min. peak field and opt. harmonics 2nd approach: Redistribute the conductors in three blocks per layer (not much more than 10 turns per block) Block 4 Block 3 Block 3 Block 4.a Block 4.b Block 2.b Block 2 Block 1 Block 1 Block 2.a

  5. Reproduction of a geometry defined by BEND in ROXIE A-length 0.3 mm For a given A-length and winding angle, very close geometries can be found for the “male” surface of the spacer.

  6. Winding Test ESTIMATED DATE FOR FIRST WINDING TEST AT CERN: END-NOVEMBER 2012 (depending on cable availability) AIM: Determine the mechanical stability of the cable Based on MQXF3_v0 Cross-Section. Return End + Lead End pole pieces, inner layer. 3D Plastic printer. Winding mandrel in Aluminium.

  7. End Parts Fabrication 11T, J. Mazet Insulation: Plasma coating + layer of fibre glass.

  8. Additional slides

  9. Constant perimeter vs. Bend Differential Geometry Ends vs. Bend

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