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Bochum 2018 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 52: Poster

HK 52.46: Poster

Thursday, March 1, 2018, 16:30–18:45, Audimax Foyer

Ladder Assembly for the Silicon Tracking System of the CBM Experiment at FAIR — •Shaifali Mehta for the CBM collaboration — Universität Tübingen, Tübingen, Deutschland — GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Deutschland

In the CBM Experiment, the track reconstruction of the charged particles followed by the momentum measurements are carried out using the Silicon Tracking System (STS). The detector comprises of 896 detector modules, based on double- sided silicon microstrip sensors distributed on 8 tracking stations. The Stations are made from mechanical half units onto which carbon fibre detector ladders are mounted holding the modules. A concept tool has been designed to study the feasibility of the ladder assembly. The size of the tool has been chosen to mount two 6.2 × 6.2   cm2 sensors on the ladder, one of the four sensor variants in the STS.
This work focuses on assembly and testing of the ladders with sensors. This way one can ensure that handling and gluing of sensors does not effect the performance of the detector system. The ladder structure, its components (sensors, micro-cables, read-out chips, front end boards) will be presented along with the assembly techniques in order to mount the modules with mechanical precision better than 100 µm.

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