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Abstract

Results of the first investigation of the activity concentration of the surface soil samples collected at various locations of Thoulakhom district of Vientiane province of Laos People's Democratic Republic (PDR) are presented in this work. The activity concentration of the natural radionuclides 226Ra, 232Th and 40K in the soil samples were determined by gamma spectrometer using a highenergy resolution semiconductor detector HPGe. The activity concentrations of the natural radionuclides were in the range from 11.28 to 31.46 with the mean of 21.76 Bq.kg-1 for 226Ra, from 7.13 to 44.47 with the mean of 21.85 Bq.kg-1 for 232Th and from 8.96 to 581.52 with the mean of 112.89 Bq.kg-1 for 40K. These mean values of the activity concentration were lower than the average worldwide ones, which were 33, 45 and 420 Bq.kg-1 for 226Ra, 232Th, and 40K, respectively. The results indicate dthat the radiation hazard from natural 226Ra, 232Th, and 40K radionuclides in all investigated soil samples taken from area under investigation in this work was not significant.



Author's Affiliation
  • Sonexay Xayheungsy

    Google Scholar Pubmed

  • Khiem Hong Le

    Google Scholar Pubmed

Article Details

Issue: Vol 2 No 4 (2018)
Page No.: 119-125
Published: Aug 13, 2019
Section: Original Research
DOI: https://doi.org/10.32508/stdjns.v2i4.819

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Xayheungsy, S., & Le, K. (2019). Natural radioactivity in the soil of Thoulakhom district in Vientiane province, Laos. Science and Technology Development Journal - Natural Sciences, 2(4), 119-125. https://doi.org/https://doi.org/10.32508/stdjns.v2i4.819

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