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Radioactivity measurement of radioactive contaminated soil by using a fiber-optic radiation sensor

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Abstract

A fiber-optic radiation sensor (FORS) was developed to measure the gamma radiation from radioactive contaminated soil. The FORS was fabricated using an inorganic scintillator (Lu,Y)2SiO5:Ce (LYSO:Ce), a mixture of epoxy resin and hardener, aluminum foil, and a plastic optical fiber. Before its real application, the FORS was tested to determine if it performed adequately. The test result showed that the measurements by the FORS adequately followed the theoretically estimated values. Then, the FORS was applied to measure the gamma radiation from radioactive contaminated soil. For comparison, a commercial radiation detector was also applied to measure the same soil samples. The measurement data were analyzed by using a statistical parameter, the critical level to determine if net radioactivity statistically different from background was present in the soil sample. The analysis showed that the soil sample had radioactivity distinguishable from background.

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Authors and Affiliations

  1. Department of Nuclear & Energy System Engineering, Dongguk University-Gyeongju, Gyeongju, 38066, Korea

    Hanyoung Joo, Rinah Kim & Joo Hyun Moon

Authors
  1. Hanyoung Joo
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  2. Rinah Kim
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  3. Joo Hyun Moon
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Corresponding author

Correspondence to Joo Hyun Moon.

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Joo, H., Kim, R. & Moon, J.H. Radioactivity measurement of radioactive contaminated soil by using a fiber-optic radiation sensor. Journal of the Korean Physical Society 68, 1287–1290 (2016). https://doi.org/10.3938/jkps.68.1287

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  • DOI: https://doi.org/10.3938/jkps.68.1287

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