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<p>A scintillator-based detection system was developed to analyze low-energy X-rays emitted by Ni-59. The detection system consists of a scintillator, a photomultiplier tube, a preamplifier, a spectroscopy amplifier, a high-voltage power supply, and a digitizer. Under optimized settings, the system achieved a detection efficiency of 4.34% when measuring Ni-59 and a minimum detectable activity of 0.55–0.60&#xa0;Bq/g in 10000 s. For comparison, a low-energy germanium detector yielded an efficiency of 1.22% and a minimum detectable activity of 0.53–0.56&#xa0;Bq/g. With room-temperature operation and a cost-effective design, the system provides a practical alternative to conventional detectors.</p>

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Feasibility study of scintillator-based detection system for Ni-59 measurement

  • 期刊论文

  • 发表日期：

    2025年10月10日

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  • Jaehyeon Seo,
  • Younghak Kim,
  • Min Sun Lee,
  • Jong-Myoung Lim,
  • Mee Jang

摘要

A scintillator-based detection system was developed to analyze low-energy X-rays emitted by Ni-59. The detection system consists of a scintillator, a photomultiplier tube, a preamplifier, a spectroscopy amplifier, a high-voltage power supply, and a digitizer. Under optimized settings, the system achieved a detection efficiency of 4.34% when measuring Ni-59 and a minimum detectable activity of 0.55–0.60 Bq/g in 10000 s. For comparison, a low-energy germanium detector yielded an efficiency of 1.22% and a minimum detectable activity of 0.53–0.56 Bq/g. With room-temperature operation and a cost-effective design, the system provides a practical alternative to conventional detectors.