Characterisation of Proto-Type Silicon Sensor for CMS Detector

Silicon strip detector in the outer tracker of CMS experiment will be upgraded for HL-LHC run which is expected to start in 2027. The CMS Inner tracker has two sub-detectors, called Inner tracker and outer tracker. Outer tracker is made of silicon strip sensors. Before making the specification of silicon sensors, silicon sensor proto-type were fabricated for studies. Few of the proto-type called mini sensors were sent to IIT Madras for characterization. We are involved in the characterization of mini silicon strip sensor at IIT Madras. The studies made at IIT madras is reported.