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CLAS12 - The Hall B 12GeV Upgrade

Photos and Pictures

 Central Calorimeter : radial fibers view. The radial fibers are  interleaved with the axial fibers. They provide shower position information along the beam direction. Since they are not used for the energy measurement only few layers are needed to provide the position information.



Central Calorimeter: radial fibers read out (detail) in the slot at the bpttom of the calorimeter

Central Calorimeter: The tungsten powder volume and some of the axial readout fibers are shown at the left. Some of the radial  fibers are indicated at right side. The radial fibers are brought to the readout ent through a slot at the bottom of  the calorimeter.

Central Calorimeter: A perspective view of the central electromagentic calorimeter inside the solenoid.

Central TOF: Perspective view of the central TOF system. Scintillator material shown in red color. In this option the scintillator light is transported to regions of reduced magnetic field using light guides (shown in translucent blue color)

Central Cathode Chamber: view of two superlayers
Central Cathode Chamber: view of two superlayers



Central Cathode Chamber: view of two superlayers


Central Cathode Chamber: view of two superlayers

Central Cathode Chamber: view of two superlayers

Central Cathode Chamber: view of two superlayers

Central Cathode Chamber: view of two superlayers


Central Cathode Chamber: view of two superlayers
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Central Cathode Chamber: view of two superlayers


Central Cathode Chamber: view of two superlayers

Central Cathode Chamber: view of two superlayers