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ELSEVIER
DOI: 10.1016/j.nima.2022.166461
Keywords
CSHINE; SSD-SSD-CsI telescopes; Silicon strip detector; Energy calibration; Particle identification; Track reconstruction
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Funding
- National Natural Science Foundation of China [11875174, 11961131010, 11961141004, 11890712]
- Ministry of Science and Technology [2020YFE0202001]
- Initiative Scientific Research Program of Tsinghua University
- Heavy Ion Research Facility in Lanzhou (HIRFL)
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In this paper, a novel method for track recognition in SSD telescopes is presented. The method achieves high track recognition efficiency through detector calibration, track reconstruction, and a special decoding algorithm to handle the multi-hit effect and missing signals.
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 track recognition in the SSD telescopes of the Compact Spectrometer for Heavy Ion Experiment (CSHINE). Each telescope consists of a single-sided silicon strip detector (SSSSD) and a double-sided silicon strip detector (DSSSD) backed by 3 x 3 CsI(Tl) crystals. Detector calibration and track reconstruction 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 approximately 90% and 80% for the DSSSD-CsI and SSSSD-DSSSD events, respectively.
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