Speaker
Mariana Petris
(IFIN-HH Bukarest)
Description
A new Transition Radiation Detector (TRD) prototype with a high granularity
for a high counting rate environment, required by the CBM experiment, at
the future experimental facility FAIR - GSI Darmstadt, was designed and
built. A solution for such a detector is a multiwire proportional chamber with
a minimized drift region, reduced to a cathode - readout pad plane distance
of 6 mm and a multiwire anode plane in the middle. Results of the 55Fe
source tests and of the in-beam investigations of the rate capability in terms
of signal deterioration and position resolution degradation with the increase
of the counting rate, for different gas mixtures, applied voltages and anode
configurations are presented. Based on the measured deposited energy
spectra, the discrimination between electrons and pions as a function of
number of layers was estimated by Monte Carlo simulations.
Author
Mariana Petris
(IFIN-HH Bukarest)
