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Advanced Spectral-Ratio Radon Background Estimate in Airborne Gamma-Ray Spectrometry and Calibration Technology

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Abstract

This paper discusses an advanced spectral-ratio method that subtracts Compton scattering rays by using a Fast Fourier Transform rather than tripping ratios and establishes a new radon background estimation mathematical model. A ground model calibration technology and a non-radioactive calibration technology based on a multiple-step Monte Carlo simulation are proposed for determining the new calibration coefficients. Applying the new calibration coefficients by using the two calibration technologies, we can remove successfully from the U window. The relative standard deviation of the radon-corrected U window count between the two calibration technologies is less than 30% within the height of the airborne survey, and it is reduced as the height increases.

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Acknowledgments

The authors acknowledge the financial support by the National Key R&D Program of China (Project No.2017YFC0602105), the National Science Foundation of China (Project No. 41774190) and the Key R&D Projects of Sichuan Province (Project No. 2018GZ0004).

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Authors and Affiliations

  1. College of Applied Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, China

    Yi Gu, Heng Lu, Meng Wang, Liangquan Ge & Qingxian Zhang

  2. Key Laboratory of Applied Nuclear Techniques in Geosciences Sichuan, Chengdu University of Technology, Chengdu, 610059, China

    Yi Gu, Heng Lu, Meng Wang, Liangquan Ge & Qingxian Zhang

Authors
  1. Yi Gu
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  2. Heng Lu
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  3. Meng Wang
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  4. Liangquan Ge
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  5. Qingxian Zhang
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Corresponding author

Correspondence to Yi Gu.

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Gu, Y., Lu, H., Wang, M. et al. Advanced Spectral-Ratio Radon Background Estimate in Airborne Gamma-Ray Spectrometry and Calibration Technology. J. Korean Phys. Soc. 76, 392–400 (2020). https://doi.org/10.3938/jkps.76.392

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  • DOI: https://doi.org/10.3938/jkps.76.392

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