MSGCS trackers in high luminosity LHC detectors is discussed.The relevance of these findings for the conception, construction and use of conditions are reported, and a tentative interpretation of the results is presented.in detail. The most significant measurements on ageing obtained in a variety of behaviour of micro-strip gas chambers under sustained irradiation are describedThe experimental set-up and the procedures used for studying the long-term ABSTRACT and T. Ropelewski-Temmel