The CDF Run II Silicon Detector

At the CDF particle physics detector, the precision tracking and vertexing is performed by the silicon detector. It is a 722,432 channel device with ap7 m
²
of silicon sensors. It continues to operate well and is used in routine data taking. However this detector operates in the harsh radiation environment of the Tevatron proton-antiproton collider. The effects of long term radiation damage will ultimately determine its lifetime. This paper describes the measurements to monitor the radiation damage and projections of its lifetime.