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HK: Fachverband Physik der Hadronen und Kerne

HK 27: Poster

HK 27.69: Poster

Dienstag, 28. März 2017, 16:45–18:45, F Foyer

Energy resolution measurements with the CBM-TRD using a ⁵⁵Fe-Source — •Marcel Raabe for the CBM collaboration — Institut für Kernphysik Goethe Universität Frankfurt

The goal of the Compressed Baryonic Matter (CBM) experiment at FAIR is to measure the QCD phase diagram at high net-baryon densities. The Transition Radiation Detector (TRD) of CBM is designed for electron pion discrimination over a large region of particle momenta. It consists of radiators and multi wire proportional chambers filled with a gas mixture of 85% Argon and 15% CO₂. A full-size (59 x 59 cm²) prototype has been build at the Institut für Kernphysik in Frankfurt (IKF) and is equipped with a plane of anode wires with alternating high voltages. The produced charge is measured with a pad plane on the backside.

We present energy resolution measurements with the current IKF TRD design using a Fe55-Source. The results obtained from the pad plane readout with the SPADIC v1.0 electronics will be compared with measurements using the anode wires for readout.

Supported by the German BMBF-grant 05P15RFFC1