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Bonn 2020 – scientific programme

The DPG Spring Meeting in Bonn had to be cancelled! Read more ...

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HK: Fachverband Physik der Hadronen und Kerne

HK 49: Instrumentation XI

HK 49.4: Talk

Thursday, April 2, 2020, 15:30–15:45, J-HS D

Aspects of ladder assembly for the Silicon Tracking System of the CBM Experiment at FAIR — •Shaifali Mehta for the CBM collaboration — University of Tuebingen

The Silicon Tracking System (STS) is the central detector for the charged-particle measure- ment and momentum determination in the future CBM experiment. It comprises of about 900 low-mass detector modules, based on double-sided silicon micro-strip sensors distributed on 8 tracking stations. These stations are made from mechanical half units onto which car- bon fiber detector ladders are mounted holding the modules. The positioning of modules assembled on the ladder is expected to be in the order of 100 μm. In STS self-triggering read-out electronics are used which is capable of acquiring data at collision rate up to 10 Mhz. To read-out, the double-sided microstrip sensors, STS XYTER, a dedicated ASIC is used. In this presentation, different aspects and techniques of assembling a ladder will be discussed. During the assembly of the ladder and module, various glues are used at different steps and to test the thermal property of those glues is very important. Along with the assembly techniques, results from the thermal cycling tests will be presented in this talk.

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