Abstract

Within the upgraded D0 detector at Fermi National Accelerator Laboratory, forward and central preshower detectors will be used for fast level 1 triggering of electrons. These detectors consist of approximately 25000 channels of extruded scintillator strips with embedded wave length shifter fiber readout. Readout is via clear fiber lightguide to Visible Light Photon Counters. An overview of each system will be presented. Results of prototype detectors to cosmic rays will be presented. Scintillator/fiber manufacture and assembly will be discussed.

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