Köln 2025 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 51: Instrumentation XI
HK 51.4: Talk
Thursday, March 13, 2025, 16:45–17:00, SR Exp1A Chemie
Status of Sensor and Detector Integration of the CBM MVD* — •Franz Matejcek for the CBM-MVD collaboration — Goethe-Universität Frankfurt
The Micro Vertex Detector (MVD) of the Compressed Baryonic Matter Experiment (CBM) will consist of four planar stations, each built of four independent quadrants, that will be equipped with dedicated CMOS pixel sensors (MIMOSIS) and will operate in vacuum. Each detector plane will feature a material budget x/X0 ranging between 0.3 and 0.5 %. The sensors will be glued onto 380 µm thick TPG (Thermal Pyrolytic Graphite) carriers and then wire-bonded to dedicated flex cables connecting the front end electronics which will be mounted on a heat sink sitting outside the acceptance. The integration is mechanically challenging as the sensors have to be glued and bonded on both sides of the carrier to maximize the acceptance.
This contribution will present the current status of the integration activities with a focus on sensor mass qualification and the finalized engineering design which is currently validated in a full-scale mechanical mock-up to prepare for detector pre-production.
*This work has been supported by BMBF (05P21RFFC2, 05H24RF5), HGS-HIRe, HFHF, GSI and Eurizon.
Keywords: CBM; Integration; CMOS Sensors; TPG