Author/Authors :
Petrovici، نويسنده , , M. and Petri?، نويسنده , , M. and Berceanu، نويسنده , , I. and Simion، نويسنده , , V. and Bartos، نويسنده , , D. and C?t?nescu، نويسنده , , V. and Herghelegiu، نويسنده , , A. and M?gureanu، نويسنده , , C. and Mois?، نويسنده , , D. and Radu، نويسنده , , A. and Klein-B?sing، نويسنده , , M. and Wessels، نويسنده , , J.P. and Wilk، نويسنده , , A. and Andronic، نويسنده , , A. and Garabatos، نويسنده , , C. and Simon، نويسنده , , R. and Uhlig، نويسنده , , F.، نويسنده ,
Abstract :
A prototype Transition Radiation Detector (TRD) with a new configuration was built and tested. The prototype consists of two individual multiwire proportional chambers (MWPC) that share a thin common central pad readout electrode. Measurements with a 55Fe source and e, π and p of 1.5 GeV/c showed a very good energy, position resolution and a better e / π discrimination compared to the standard structure with a single MWPC. No significant deterioration of the resolutions is observed up to counting rates of 2 × 10 5 particles cm - 2 s - 1 . These results open the possibility of constructing TRDs with a high e / π discrimination and granularity even for high-counting rate experiments with a reasonable number of layers.
Keywords :
Gaseous detectors , e / ? discrimination , high efficiency , Transition radiation detectors , High-counting rate
