Mainz 2022 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 58: Instrumentation XIV

HK 58.3: Talk

Thursday, March 31, 2022, 14:30–14:45, HK-H3

Mechanical and thermal studies of various components of the Silicon Track- ing System — •Shaifali Mehta for the CBM collaboration — Eberhard Karls Universität Tübingen(UT-PIT)

The Silicon Tracking System (STS) located in the aperture of the dipole magnet is designed to perform the charged particle tracking to achieve a momentum resolution better then 2 micro strip sensors, distributed on 8 tracking stations. The stations are made from mechanical half units onto which 106 ultra-light carbon fibre support structures, referred as ladders, are mounted which hold the modules. During the assembly of modules, different glues are used at various steps of the assembly and it is very important to test for the thermal and mechanical properties of the glue. Once the modules are prepared, they are transferred to the ladder using a standard procedure. A well defined technique has been developed to mount the modules on a ladder to achieve the precision in order of 100 µm. Two full ladders and one half ladder has been assembled so far within the required mounting precision. The results from the thermal cycling of the different glues used in module assembly and the concept of mounting the modules onto the ladder for the STS within the defined mechanical precision will be presented in this talk.