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<p>CdZnTeSe (CZTS) has recently emerged as a potential alternative to CdZnTe (CZT) for radiation detection, owing to its improved charge-transport properties and improved spectral performance. In this study, we first assessed the feasibility of beta-ray spectroscopy using a commercially available CZT detector to validate our measurement setup. Planar CZT and CZTS detectors, grown under identical conditions, were then fabricated and compared for their beta-ray spectroscopic performance. Energy calibration was carried out using both low- and high-energy gamma-ray sources, and Monte Carlo simulations were performed to compare the experimental spectra with simulated detector responses. The results showed that CZTS exhibited better charge-transport properties and higher signal retention than CZT, as confirmed by the larger experimental-to-simulated spectral ratio. These findings support the potential of CZTS as a high-performance semiconductor detector for beta-ray spectroscopy and related radiation-detection applications.</p>

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First performance results of a CdZnTeSe crystal for beta-ray spectroscopy of beta-emitting radioisotopes

  • 期刊论文

  • 发表日期：

    2026年7月9日

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  • Younghak Kim,
  • Mee Jang,
  • Hyuncheol Kim,
  • Jangwon Byun,
  • Jiwon Seo,
  • Yonghoon Kim,
  • Ahreum Park,
  • Jichul Seo,
  • Jung-Yeol Yeom,
  • Beomjun Park

摘要

CdZnTeSe (CZTS) has recently emerged as a potential alternative to CdZnTe (CZT) for radiation detection, owing to its improved charge-transport properties and improved spectral performance. In this study, we first assessed the feasibility of beta-ray spectroscopy using a commercially available CZT detector to validate our measurement setup. Planar CZT and CZTS detectors, grown under identical conditions, were then fabricated and compared for their beta-ray spectroscopic performance. Energy calibration was carried out using both low- and high-energy gamma-ray sources, and Monte Carlo simulations were performed to compare the experimental spectra with simulated detector responses. The results showed that CZTS exhibited better charge-transport properties and higher signal retention than CZT, as confirmed by the larger experimental-to-simulated spectral ratio. These findings support the potential of CZTS as a high-performance semiconductor detector for beta-ray spectroscopy and related radiation-detection applications.