Track Recognition for the $ΔE-E$ Telescopes with Silicon Strip Detectors

Abstract

For the high granularity and high energy resolution, Silicon Strip Detector (SSD) is widely applied in assembling telescopes to measure the charged particles in heavy ion reactions. In this paper, we present a novel method to achieve the track recognition in the SSD telescopes of the Compact Spectrometer for Heavy Ion Experiment (CSHINE). Each telescope consists of a singlesided silicon strip detector (SSSSD) and a double-sided silicon strip detector (DSSSD) backed by 3 × 3 CsI(Tl) crystals. Detector calibration, track reconstruction and coordinate transformation are implemented. Special decoding algorithm is developed for the multi track recognition procedure to deal with the multi-hit effect convoluted by charge sharing and the missing signals with certain probability. It is demonstrated that the track recognition efficiency of the method is ∼90% and ∼80% for the DSSSD-CsI and SSSSD-DSSSD events, respectively.