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Methods for obtaining characteristic γ-ray net peak count from interlaced overlap peak in HPGe γ-ray spectrometer system

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Abstract

For a characteristic γ-ray with interlaced overlap peak, and the case where its reliable and credible net count cannot be obtained using the current high-purity germanium (HPGe) multichannel γ-ray spectrum software, two new methods are proposed herein to obtain the γ-ray net peak count from the interlaced overlap peak in the HPGe γ-ray spectrometer system, of which one is the symmetric conversion method based on Gaussian distribution and the other is where the energy average value of two close γ-rays is regarded as the γ-ray energy. The experimental results indicate that the two methods mentioned above are reliable and credible. This study is significant for the development of better γ-ray spectrum processing software for measuring complex γ-ray spectra concerning the nuclear reaction cross section, neutron activation analysis, and analysis of transuranium elements, using an HPGe detector.

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Acknowledgements

We thank the crew of the K-400 Neutron Generator at Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics for performing irradiation work.

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Authors and Affiliations

  1. School of Electrical and Mechanical Engineering, Pingdingshan University, Pingdingshan, 467000, China

    Yue-Li Song, Feng-Qun Zhou, Yong Li, Xiao-Jun Sun & Peng-Fei Ji

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  1. Yue-Li Song
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  2. Feng-Qun Zhou
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  3. Yong Li
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  5. Peng-Fei Ji
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Correspondence to Feng-Qun Zhou.

Additional information

This work was supported by the National Natural Science Foundation of China (Nos. 11575090, 11605099) and the Young Key Teachers Training Program of He’nan Higher Education in China (No. 2015GGJS-258).

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Song, YL., Zhou, FQ., Li, Y. et al. Methods for obtaining characteristic γ-ray net peak count from interlaced overlap peak in HPGe γ-ray spectrometer system. NUCL SCI TECH 30, 11 (2019). https://doi.org/10.1007/s41365-018-0525-7

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