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<p>To enable rapid efficiency calibration for irregularly shaped samples with High Purity Germanium (HPGe) γ-ray spectrometers. This study presents a sourceless efficiency calibration method based on numerical computation, Monte Carlo simulation, and 3-dimensional scanning technology. Using this method, efficiency calibration was performed on a uranium ore sample in different orientations and shapes, and its specific activities were measured and calculated by an HPGe γ-ray spectrometer and compared with values obtained using conventional sample preparation method. The experiment results confirmed the potential of this sourceless efficiency calibration method.</p>

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Sourceless efficiency calibration method for irregularly shaped radioactive samples with HPGe γ-ray spectrometers

  • 期刊论文

  • 发表日期：

    2026年1月2日

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  • Yuchen Liu,
  • Zekuan Chen,
  • Zhipeng Deng,
  • Liangquan Ge,
  • Qingxian Zhang

摘要

To enable rapid efficiency calibration for irregularly shaped samples with High Purity Germanium (HPGe) γ-ray spectrometers. This study presents a sourceless efficiency calibration method based on numerical computation, Monte Carlo simulation, and 3-dimensional scanning technology. Using this method, efficiency calibration was performed on a uranium ore sample in different orientations and shapes, and its specific activities were measured and calculated by an HPGe γ-ray spectrometer and compared with values obtained using conventional sample preparation method. The experiment results confirmed the potential of this sourceless efficiency calibration method.