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Preparation of samples by extraction of particles from filter media for γ-ray spectrometry with high detection efficiency

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Abstract

The exposed filter media are usually compressed into disks for γ-ray spectrometry in atmospheric particulate radionuclide monitoring. A novel sample preparation process for γ-ray spectrometry by extraction of particles in filter media was proposed in order to raise detection efficiency. A device called a particle extractor was developed to extract the particles through a process of washing, spinning, flocculation and filtration. The process was validated by reference and real filter samples. The results showed that the detection efficiency of the rod sample in the well HPGe detector is 5.3 times that of the traditional sample in the coaxial detector.

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Authors and Affiliations

  1. Northwest Institute of Nuclear Technology, P.O. Box 69-14, Xi’an, 710024, China

    Dongmei Li, Longbo Liu, Hanbin Tang, Xiaolin Zhang, Chenwu Yue, Bin Chen & Sui Fang

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  1. Dongmei Li
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  2. Longbo Liu
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  3. Hanbin Tang
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  4. Xiaolin Zhang
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  5. Chenwu Yue
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  6. Bin Chen
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  7. Sui Fang
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Correspondence to Longbo Liu.

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Li, D., Liu, L., Tang, H. et al. Preparation of samples by extraction of particles from filter media for γ-ray spectrometry with high detection efficiency. J Radioanal Nucl Chem 329, 309–317 (2021). https://doi.org/10.1007/s10967-021-07783-z

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  • DOI: https://doi.org/10.1007/s10967-021-07783-z

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