Tooth enamel EPR spectroscopy study of radiation doses for uranium miners in Northern Kazakhstan
Zhumadilov K. Ivannikov A. Kassymzhanov M. Kazymbet P. Bakhtin M. Nursultanova N. Bagramova A. Nasilov Z. Stepanenko V. Khailov A. Hoshi M.
2026Taylor and Francis Ltd.
International Journal of Radiation Biology
2026
Purpose: In order to estimate the effect of radiation exposure on the workers of a uranium enterprise, teeth samples were collected for EPR dosimetry of tooth enamel from workers of uranium mines living in Shantobe settlement (Akmola region, Northern Kazakhstan) and from residents of this settlement who had never worked in the mine as a control. Methods: The accumulated radiation doses in enamel were estimated based on the magnitude of the radiation-induced EPR signal in the samples. Excess (additional) doses were obtained after subtracting the contribution of natural radiation at typical levels during enamel age, and they were interpreted as caused by radiation in the work environment and by radioactive contamination of the territory. Results: For the personnel of the uranium mining enterprise (17 teeth samples), the average excess dose was 90 ± 20 mGy (standard uncertainty of the average is indicated here and below). For the rest of the population who did not work at the mine (10 teeth samples), the average excess dose is estimated at 20 ± 12 mGy. Conclusions: A higher mean dose and greater variation were observed for miners in comparison to non-mining people in the same settlement. These differences were likely due to the occupational exposure. © Copyright
dosimetry , EPR , occupational radiation exposure , tooth enamel , uranium mining
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L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
A.F.Tsyb Medical Radiological Research Center–Branch of the National Medical Research Radiological Center of the Russian Ministry of Health, Obninsk, Russian Federation
Medical University Astana, Astana, Kazakhstan
Hiroshima University, Hiroshima, Japan
L.N. Gumilyov Eurasian National University
A.F.Tsyb Medical Radiological Research Center–Branch of the National Medical Research Radiological Center of the Russian Ministry of Health
Medical University Astana
Hiroshima University
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Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026