# F. Borgnolutti June 10 th, 2013 Layer jump: Only hard way bent design.

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F. Borgnolutti June 10 th, 2013 Layer jump: Only hard way bent design

Conductor Properties – version 1 11/15/2012F. Borgnolutti Reacted bare conductor UnitOLD (Frascati)New Width mm18.63818.513 Thickness inmm1.4621.505 Thickness outmm1.6731.682 Mid-thicknessmm1.5681.594 Keystone angledeg0.650.55 Insulation thickness0.150mm 2 Un-reacted bare conductor UnitOLD (Frascati)New Widthmm18.150 Mid-thicknessmm1.525 Keystone angledeg0.650.55 Thickness inmm1.438 Thickness outmm1.612 2 % growth in width 4.5 % growth in thickness

Only hard-way bend ramp 11/15/2012F. Borgnolutti3  Matlab model of the coil to see if there are solutions that gives good field quality with the constraint of a layer jump with hard way bend only:

Only hard-way bend ramp 11/15/2012F. Borgnolutti4 teta alpha

Only hard-way bend ramp 11/15/2012F. Borgnolutti5  Matlab model of the coil to see if there are solutions that gives good field quality with the constraint of a layer jump with hard way bend only:

Only hard-way bend ramp 11/15/2012F. Borgnolutti6  Matlab model of the coil to see if there are solutions that gives good field quality with the constraint of a layer jump with hard way bend only: b6 b10 b14

Conductor Properties 11/15/2012F. Borgnolutti PIT/RRP (Paolo’s parametrization) 45% copper  : 2450 A/mm 2 @ 12 T, 4.2K  632 A 1400 A/mm 2 @ 15 T, 4.2 K  361 A  5% degradation  Self field correction (Peak field taken at r= 0.85×r wire ) 0.454 T/kA (r=0.85*rwire) 7 Strand RRP (Arno’s parametrization)  47% copper 2650 A/mm 2 @ 12 T, 4.2K  706 A 1400 A/mm 2 @ 15 T, 4.2 K  373 A  5% degradation  Self field correction: (straight wire, Peak field taken at r= 0.89×r wire ) 0.529 T/kA (r=0.89*rwire) 0.554 T/kA (r=0.85*rwire) Specification critical current Degradation and self field correction

Conductor Properties 11/15/2012F. Borgnolutti8 Arno’s parametrization available on plone: https://plone.uslarp.org/MagnetRD/DesignStudies/QX-CD/ShortSample/

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