Erlangen 2026 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 9: Instrumentation II

HK 9.6: Talk

Monday, March 16, 2026, 17:45–18:00, PHIL B 302

Status of the Readout of the CBM Micro Vertex Detector* — •Benedikt Gutsche for the CBM-MVD collaboration — Goethe-Universität Frankfurt

The Compressed Baryonic Matter (CBM) Experiment will be one of the main experiments at the future FAIR facility. Its Micro Vertex Detector (MVD) will be composed of four sensor planes in vacuum and will be equipped with Monolithic Active Pixel Sensors (MIMOSIS). The sensor is being developed by IPHC Strasbourg and will run with a sustained rate of up to 80 MHz/cm². Like other parts of CBM, the detector will be read out using radiation hard electronics (GBTx) and PCIe based FPGA boards (CRI).

In this contribution, we report on the integration of a CRI-based readout for a setup consisting of two MIMOSIS sensors, which was the first time the setup was used in the common CBM readout chain. The operation and data consistency has been validated by using correlations with other subsystems of CBM during an experimental run in May 2025. We will present the first in-beam results of this test setup.

*This work has been supported by BMFTR (05H24RF5), GSI, and HFHF.

Keywords: CBM; MVD; MIMOSIS; MAPS; CPS