Nucl. Instr. and Meth. A, 654 (2011) 272-278
In the last few years the FAZIA collaboration has been investigating the properties of silicon detectors – in particular the crystal orientation and resistivity non-uniformity– in order to better pin down the detector characteristics that influence their performances for particle identification using DE-E and Pulse Shape Analysis (PSA) techniques.
In this paper we present the first particle
identification results obtained with detectors selected for good resistivity uniformity and using a ‘‘non-channeled’’ configuration. A new digital electronics was also designed for the R&D phase of FAZIA
and was tested under beam for the first time.
A quantitative procedure to measure the observed
performances is applied in order to quantify the particle identification thresholds. Particle identification thresholds of about 2.5 AMeV for Z between 3-10 have been reached with the studied reaction.