Darmstadt 2016 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 60: Instrumentation XVII

HK 60.6: Talk

Thursday, March 17, 2016, 17:45–18:00, S1/01 A4

The read-out chain of the CBM STS detector — •Jörg Lehnert and David Emschermann for the CBM collaboration — GSI Helmholtzzentrum für Schwerionenforschung GmbH

The Compressed Baryonic Matter (CBM) experiment at FAIR will explore the QCD phase diagram at high baryon densities during nucleus-nucleus collisions in a fixed target setup. Its physics goals require interaction rates up to 10 MHz, which can be exploited with fast and radiation hard detectors equipped with free-streaming front-end and readout electronics, connected to a common Data Aquisition (DAQ) system to forward data to the First Level Event Selector (FLES). The core component of the CBM DAQ system is the Data Processing Board (DPB) implementing three important functionalities:

• The incoming data via multiple lower-speed, short distance links is preprocessed, concentrated and forwarded to the FLES via higher-speed, long distance links.
• The DPBs provide an interface for the Detector Control System (DCS) to configure readout and front-end electronics (FEE).
• As part of the Timing and Fast Control (TFC) system the DPBs ensure transmission of the reference clock and synchronous commands necessary to synchronize the FEE.

This contribution will present the readout and DAQ chain on the example of the core subdetector, the Silicon Tracking System (STS).