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Research Article

Determination of elemental concentrations of radionuclides in Turkish bentonite and calculation of radiogenic heat generation

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Received 28 Sep 2022, Accepted 19 Oct 2022, Published online: 02 Nov 2022
 

ABSTRACT

Bentonite containing smectite group clay minerals is an industrial raw material with a wide range of uses. In this study, the concentration of uranium, thorium, and radioactive potassium in ninety bentonite samples collected from quarries in Turkey was determined using an energy-dispersive X-ray fluorescence spectrometer. The concentrations of uranium, thorium and potassium varied from 0.4 to 18.2 with an average of 4.3 mg/kg, 5.4 to 53.4 with an average of 22.7 mg/kg and 0.3 to 3.4 with an average of 1.4 mg/kg, respectively. The radiogenic heat generation caused by the ionising radiation emitted from these radioactive elements in bentonite samples was calculated in the range of 0.9 to 6.6 µW/m3 with an average of 2.8 µW/m3.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This study is carried out within the framework of a doctoral thesis conducted at Kastamonu University and supported by The Scientific Research Projects Coordinator of Kastamonu University (Research Project codded of KÜ-BAP01/2020-7).

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