Radiation damage studies for the DØ Silicon Micro-strip Tracker at the Tevatron

A Silicon Micro-strip Tracker has been operating at the DØ experiment at the Fermilab Tevatron collider (Batavia, Illinois, USA) since 2001. The sensor leakage current, full depletion voltage, signal size and noise level are continuously monitored for radiation damage. Predictions are also made for the detector parameters towards the end of the Tevatron Run II. These predictions are based on the locations and types of the sensors, our knowledge and measurements of the phenomenology of radiation damage as well as the actual dose received in the Tevatron environment. We present the results of these aging studies and predictions in this talk.