Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 59: Instrumentation 17

HK 59.2: Talk

Thursday, March 26, 2015, 17:30–17:45, M/HS1

The Next Generation CBM MVD Front-end Electronics — •Michael Wiebusch, Jan Michel, Philipp Klaus, and Joachim Stroth for the CBM-MVD collaboration — Goethe-Universität, Frankfurt

The Micro Vertex Detector (MVD) for the CBM experiment is a highly granular precision tracking device. Due to the ambitious requirements regarding spatial resolution, radiation hardness, read-out speed and material budget, monolithic active pixel sensors (MAPS) are the most suited detector technology for this purpose. A full read-out chain for these sensors was designed and prototyped, comprising a multi-purpose FPGA platform and specialized front-end electronics. During the last year an updated version of the front-end electronics was produced and successfully commissioned. The current front-end electronics incorporate additional configuration and monitoring capabilities which shall be used to optimize the concept of biasing and routing critical analog signals to the sensor. Tests regarding these issues are ongoing. Recent efforts aim at building a quarter of an MVD station with more than a dozen individual MAPS sensors. This requires the adaption of the front-end electronics to the spacial constraints of the set-up. Also the schematics have to be streamlined based on the insights from the abovementioned tests. This contribution will present the outcomes of the adaption and optimization procedures. *This work has been supported by BMBF (05P12RFFC7), GSI and HIC for FAIR.