Slide 1

The LT Dipole July 8 th, 2014

Slide 2

Motivation Combine expertise of LBNL & TAMU to overcome common obstacles and reach higher fields with regular milestones Modular approach LT1: 13T Nb 3 Sn open-aperture (9x5 cm 2 ) LT2: 15T, LT1 + a racetrack of BSCCO-2212 LT3: 19T, LT2 + a flared winding of BSCCO-2212 Stress management and continuous support of reacted cable to avoid damage losses

Slide 3

Magnetics for LT1

Slide 4

Magnetics for LT2

Slide 5

Stress management structure Magnetics for LT3

Slide 6

Before pancake winding Add pic of just mandrel Window for quench heaters and voltage taps

Slide 7

Mandrel heart Magnetic cutout also serves as a slot Common design allows part reuse Thin-skin slots into place

Slide 8

Pancake and associated structure

Slide 9

Pre-structure for flare These pieces provide supported form, and allow safe removal of flare 873mm bending radius, 10 arc (same as HD3)

Slide 10

Flared winding and structure Pins for flare? Window for quench heaters and voltage taps

Slide 11

Remove mandrel heart and install spanner plates Aperture now cleared in end pieces Continuous support of Nb 3 Sn mitigates assembly damage

Slide 12

Assembling two halves Common wall pushes out plates through thick-skin Continuous support of Nb 3 Sn mitigates assembly damage

Slide 13

Removal of spanner plates

Slide 14

Completed coil package

Slide 15

Bladder/key magnet assembly Similar to HD2/HD3, yoke is keyed against shell, then coil package is inserted and keyed