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HK: Fachverband Physik der Hadronen und Kerne

HK 30: Instrumentation VI

HK 30.7: Vortrag

Mittwoch, 1. April 2020, 15:45–16:00, J-HS D

Radiator Studies with CBM-TRD Prototypes in Testbeams at DESY — •Adrian Meyer-Ahrens for the CBM collaboration — Institut für Kernphysik, Münster, Deutschland

The Transition Radiation Detector (TRD) is a part of the Compressed Baryonic Matter (CBM) experiment at FAIR. The detector is composed of a radiator, consisting of layers of irregular polyethylene (PE) foam foils, and a multi-wire proportional chamber (MWPC). For the CBM-TRD's main tasks, especially for electron identification with a high suppression of pions, a high yield of TR generated by electrons passing through the radiator is crucial. In a dedicated testbeam campaign, two CBM-TRD prototypes were set up at DESY in August of 2019 and tested with electron beams using various radiator thicknesses.

In this talk, analysis results concerning the performance of the detector in this testbeam campaign will be presented. This work is supported by BMBF grant 05P19PMFC1 and the GSI F&E programme.