SBS Magnet and Infrastructure Status

Robin WinesJuly 2015

SBS

11/4/2014 2

Scattering Chamber & Vacuum SnoutIn Storage

Front Field ClampIn Procure

Corrector MagnetsIn Procure

48D48 MagnetIn Storage

Counterweight Support StructureIn Storage

Exit Beam PipeDrawing

Rear Field ClampDrawings in Check

SBS Magnet and Supports• Magnet tests at 200A completed• Modifications to allow beam-right

configurations completed• Yoke parts and racetrack coils in storage• New Saddle Coil to arrive at Jlab in

August 2015• Magnet Manifold parts to be ordered

by September 2015• Counterweight Blocks and Support

Weldment in storage• Floor Plates designed and to be ordered

by September 2015• Parts for lift and motion of

support/magnet are 75% defined, some ordered by September 2015

Counterweight Weldment

Field Clamps

Front Clamp

Rear Clamp• Front Clamp – in

procurement, fabrication from existing Jlab plates, 4 pieces bolted together

• Rear Clamp – drawings being checked, fabrication from BNL provided plate, assemble in 2 pieces

• Field Clamp Supports – reusing BNL stand-off cylinders, need additional supports from top and side, drawings being checked

Pole Shims• Pole shims are required in

GEp configurations to increase field integral

• Design of shims is complete • Delivery scheduled for

November 2015

• Installation device required to insert into Magnet gap

• Design of device is complete. To be procured in FY16

Shielded Beampipe• Configurations of shielded beampipe have beam determined and

analyzed. In process of drawing parts to have procurement awarded by September 2015

• Configurations determined for all angles of each experiment• Assembly mechanism determined, support mechanism being designed

Tapered welded vacuum pipe flange connections

18 inner tapered half sections of magnetic shielding

68 outer tapered half rings of magnetic shielding

Corrector Magnets

Upstream Downstream

• Completed optimization of Correctors in Tosca for all angles of each experiment to minimize beamline field

• Corrector magnets are in procurement. Conductor has been purchased to provide to vendor in August 2015

• Each corrector utilizes two power supplies to allow variation in current settings in coil as needed. Will use existing power supplies, received from Accelerator.

Beamline optimizing GEP12

Beamline Integral too big

Main Integral

2

3

1

Main Integral2.44E06 G-cm

Angle Integral0 174 G-cm0.5 1222G-cm-0.5 1582G-cm

• In regions 2 & 3 Integral required to be < 3000G-cm to keep beam on track to dump

Angle Integral0 611G-cm

0.5 2355G-cm-0.5 999G-cm

1

2

3

2

Beamline optimizing GEN10

1

2

3

• Main Integral 1.68E06 G-cm

• Region 2Angle Integral0 617G-cm0.5 1091G-cm-0.5 312G-cm

• Region 3Angle Integral0 702G-cm0.5 2857G-cm-0.5 2462G-cm

Beamline optimizing GMN12

1

2

3

• Main Integral 1.71E06 G-cm

• Region 2Angle Integral0 741G-cm0.5 1260G-cm-0.5 3038G-cm

• Region 3Angle Integral0 604G-cm0.5 1830G-cm-0.5 583G-cm

Items to complete• Rear field clamp in procurement by September• Shielded beampipe drawings done and in procurement by

September• Floor plates and counterweight support hardware ordered by

September• Field clamp supports in procurement by September• Windows ordered and tested by November • Water manifold parts ordered by September• Beamline supports designed and procured by January• Detector frames and supports designed and procured by

January• Sieve plate and pulley designed, ready for procurement• Electronics Hut layout complete, designed by November