SCINTILLATOR-FIBER-BASED INNER TRACKING DETECTORS FOR THE DØ EXPERIMENT AT FERMILAB

The DØ Detector, one of two large collider detectors at the Fermilab Tevatron, has recently completed a major upgrade and has just begun operating with the Main Injector. An integral part of the upgraded detector is an entirely redesigned inner tracking volume, which includes two new scintillator-based particle detection systems read out by visible light photon counters (VLPCs): a Scintillating Fiber Tracker, and a Central and Forward Preshower system. A general overview of the design and technology of these tracking elements, including a discussion of the cogent physics goals they are to address, will be presented.