GIF Irradiation Test with an 8-Plane TRT Endcap Sector Prototype

In this document we report the results from a a study of the performance under high rates of an endcap TRT 8-plane sector prototype placed in the Gamma Irradiation Facility (GIF) at CERN. This represents a total 192 fully instrumented straws with close to final electronics. After describing the electrical characterization of the front-end electronics, results will be presented in terms of occupancies and noise rates under irradiation. We study also possible sources of cross-talk and common mode noise between straws which affect the overall performance of the system.