Recent results for the CMS tracker silicon detectors

The paper reports on a detailed study of the radiation resistance of p/sup +/ on n silicon microstrip detectors for the CMS tracking system. From this study one can evince that the use of low resistivity substrates with <100> crystal lattice orientation can improve the performance of the Inner Tracker after heavy irradiation in the LHC environment. Furthermore, the advantage of using detectors thicker than 300 /spl mu/m in the Outer Tracker is discussed together with experimental measurements on prototypes.