Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 18: HK+T Joint Session IV: Pixel Detectors

HK 18.5: Talk

Tuesday, March 28, 2017, 12:05–12:20, F 073

Evaluation of Innovative Cooling Concepts with High Performance Carbon Material for Vertex Detectors operated in Vacuum — •Daniela Mijatovic for the CBM-MVD collaboration — Goethe-Universität Frankfurt

Vertex detectors operating in vacuum have to feature, besides a low material budget, also an excellent cooling performance to ensure the efficiency of the sensors. High-performance, carbon-based materials allow to resolve this contradiction, following the concept of heat conduction to guide the heat dissipated by the sensors to heat converters located outside the detector acceptance.

Sensor carrier materials based on graphite (e.g. low-cost Thermal Pyrolythic Graphite (TPG)) and Chemical Vapor Deposited (CVD) diamond were systematically studied. To do so, IR thermography is employed supplemented by PT100 sensors to quantitatively examine the thermal performance of MVD detector modules in vacuum. In addition, we compare the results with dedicated simulations (Autodesk CFD Motion) on the heat load of detector modules.

This contribution presents our work in designing and testing innovative carrier material assemblies to efficiently cool ultra-thin vertex detectors in the context of constructing the Micro-Vertex-Detector (MVD) for CBM at the future FAIR facility.

* This work has been supported by BMBF (05P15RFFC1), GSI and HIC for FAIR.