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Spectral analysis of paramagnetic centers induced in human tooth enamel by x-rays and gamma radiation

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Journal of Applied Spectroscopy Aims and scope

Based on study of spectral and relaxation characteristics, we have established that paramagnetic centers induced in tooth enamel by x-rays and gamma radiation are identical in nature. We show that for the same exposure dose, the intensity of the electron paramagnetic resonance (EPR) signal induced by x-radiation with effective energy 34 keV is about an order of magnitude higher than the amplitude of the signal induced by gamma radiation. We have identified a three-fold attenuation of the EPR signal along the path of the x-radiation from the buccal to the lingual side of a tooth, which is evidence that the individual had undergone diagnostic x-ray examination of the dentition or skull. We have shown that the x-ray exposure doses reconstructed from the EPR spectra are an order of magnitude higher than the applied doses, while the dose loads due to gamma radiation are equal to the applied doses. The data obtained indicate that for adequate reconstruction of individual absorbed doses from EPR spectra of tooth enamel in the population subjected to the combined effect of x-radiation and accidental external gamma radiation as a result of the disaster at the Chernobyl nuclear power plant, we need to take into account the contribution to the dose load from diagnostic x-rays in examination of the teeth, jaw, or skull.

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Authors and Affiliations

  1. Belorussian State Medical University, 83 prosp. Dzerzhinskii, Minsk, 220116, Russia

    V. A. Kirillov & I. I. Kuchuro

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  1. V. A. Kirillov
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  2. I. I. Kuchuro
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Correspondence to V. A. Kirillov.

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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 77, No. 1, pp. 142-149, January-February, 2010.

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Kirillov, V.A., Kuchuro, I.I. Spectral analysis of paramagnetic centers induced in human tooth enamel by x-rays and gamma radiation. J Appl Spectrosc 77, 132–139 (2010). https://doi.org/10.1007/s10812-010-9304-x

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  • DOI: https://doi.org/10.1007/s10812-010-9304-x

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