G2p Hall Infrastructure

Alan Gavalya

May 2011

Overall g2p Target on Pivot in Hall A

Target Upstream Raised 9cm Septum In

Target Upstream Septum In

Target on Pivot Septum Out

Dump with Removable Cartridge

Lead Shielding

Removable Cartridge Fabricated by UVA

Sieve Slits Added

Sieve Slit AssembliesFabricated by UVATungsten Dump

Cooling Lines with BeO Viewer

Cooling Plates

BeO Beam Viewer

Dump Mount with Camera + Light

Adjustment Cartridges Fabricated byTel Aviv Univ

Light W/ CameraHe Enclosure

Dump Mount

Weldment on Pivot

Dump Support Plate with Carriage Fabricated by Rutgers

Septum Magnet

Guard Shield

Septum Magnet

Coils Added

Manifolds for coil cooling installed

Beam line to Dump will be Welded in Situ

Adding Target

Beam 0 degree

Beam 20 degree

Beam 90 degree

Cartridge Vertically Extracted

Cartridge Extraction Device

Removable Cartridge Extracted from Dump

Moved Upstream for Clearance

Rails Permit Cartridge to be Moved 3.5” Upstream

Cartridge Fully Extracted

Rails Permit Cartridge to be Moved 36”off Beam Line

Remaining Design Items• Camera/Light Mount• Lead Shield/Top Plate Details• Cooling Lines for Low Power Dump• He Bags (Upstream and Downstream connections)• Means to Elevate Target Position 9cm above Beam line• Revise Low Power Dump to Accept Beams with Target in

Raised position.