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The Layer 0 Inner Silicon Detector of the D0 Experiment

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arxiv 0911.2522 v1 pith:B7YOJI7Y submitted 2009-11-13 physics.ins-det hep-ex

The Layer 0 Inner Silicon Detector of the D0 Experiment

classification physics.ins-det hep-ex
keywords layermountedsensorsstructurecarboncircuitdetectorelectronics
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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This paper describes the design, fabrication, installation and performance of the new inner layer called Layer 0 (L0) that was inserted in the existing Run IIa Silicon Micro-Strip Tracker (SMT) of the D0 experiment at the Fermilab Tevatron collider. L0 provides tracking information from two layers of sensors, which are mounted with center lines at a radial distance of 16.1 mm and 17.6 mm respectively from the beam axis. The sensors and readout electronics are mounted on a specially designed and fabricated carbon fiber structure that includes cooling for sensor and readout electronics. The structure has a thin polyimide circuit bonded to it so that the circuit couples electrically to the carbon fiber allowing the support structure to be used both for detector grounding and a low impedance connection between the remotely mounted hybrids and the sensors.

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