PHENIX BNL 6/3/2005 Walter Sondheim, Jan Boissevain, Dave Lee PHENIX UPGRADES: SVTX + SI ENDCAPS PHENIX NCC PHENIX Central Magnet sans HBD PHENIX 39 cm 33 cm 45 cm PHENIX HYTEC Barrel Concept PHENIX HYTEC Complete Concept PHENIX HYTEC Structural Concept PHENIX Utility Routing Concept 39 cm 33 cm PHENIX Endcap Fiber Optic Readout Molex Quad 24 fibers Barrel Readout Pixel both ends Strips layer 3 south layer 4 north PHENIX Transition pixel bus board in endcap acceptance PHENIX Pixel Layer Cable Interference Need to move transition out 5-10 cm Current Al cable = 20 cm 3 x 3 cm**2 PHENIX 45 cm radius, z =39 cm33 cm radius 23 cm radius PHENIX Barrel Readout Only PHENIX Barrel with Endcap added PHENIX Endcap with Readout Board(green) and fiber optic connector(orange) 12 fibers per connector PHENIX Readout board,kapton or FR4 Fiber optic connectors 12 fibers x 2 PHENIX Strip Ladder Readout Cable Layer 4 PHENIX Pixel Ladder Readout Cable Aluminum Copper Al-Cu transition PHENIX Layer 1 pixel ladder and 20 cm bus PHENIX