Speaker
Mr
Michael Deveaux
(Goethe University Frankfurt)
Description
The Compressed Baryonic Matter Experiment (CBM) is one of the core experiments of the future FAIR facility at Darmstadt/Germany. The experiment will explore the phase diagram of hadronic matter in the regime of highest baryon densities. Nuclear fireballs created in heavy ion collisions of 8-45 AGeV beam energy will be studied with numerous probes, among them open charm.
Reconstructing those rare probes requires a vacuum compatible micro vertex detector (MVD) with unprecedented properties. Its sensor technology has to feature a spatial resolution of <5µm, a radiation tolerance of >$10^{13}$ n/cm² and a time resolution of few 10 µs. The detector station must combine an active cooling of the sensors (~1W/cm²) with a material budget below few 0.1% radiation length.
To match those requirements, we rely on the CMOS Monolithic Active Pixel Sensors provided by the IPHC Strasbourg. The highly granular and 50µm thin sensors will be mounted on a cooling support made from CVD diamond. This support drives the dissipated power to a heat sink outside the detector acceptance. Moreover, ultra-thin flex print cables are employed to supply power and to connect the sensors to the readout and slow control
We discuss the concept of the CBM MVD and report about the status of our prototyping
for the collaboration
CBM-MVD collaboration
Primary author
Mr
Michael Deveaux
(Goethe University Frankfurt)
