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Metamorphic modifications and EPR dosimetry in tooth enamel
A Brik1, V Radchuk, O Scherbina
1Academy of Sciences of the Ukraine, Institute of Geochemistry, Mineralogy and Ore Formation, Kiev, Ukraine.
Summary
Metamorphic changes in tooth enamel significantly impact Electron Paramagnetic Resonance (EPR) dosimetry results. Biological mineral alterations occur faster than in natural minerals, requiring further study for Chernobyl dose reconstruction.
Area of Science:
- Geochemistry
- Biomineralogy
- Radiological Dosimetry
Background:
- Tooth enamel, a biomineral, undergoes metamorphic modifications.
- These modifications can influence the accuracy of radiation dosimetry methods.
- Understanding these changes is crucial for retrospective dose assessment.
Purpose of the Study:
- To investigate the influence of metamorphic modifications in tooth enamel on EPR dosimetry.
- To compare the rate of metamorphic changes in biological minerals versus natural minerals.
- To evaluate current methods for Chernobyl accident dose reconstruction.
Main Methods:
- Electron Paramagnetic Resonance (EPR) dosimetry.
- Analysis of mineralogical changes in tooth enamel.
- Comparison with natural mineral alteration rates.
Main Results:
- Metamorphic modifications in tooth enamel significantly affect EPR dosimetry outcomes.
- Biological mineral alterations in enamel proceed at an accelerated rate compared to natural minerals.
- Existing Chernobyl dose reconstruction approaches require further validation.
Conclusions:
- Tooth enamel's metamorphic state is a critical factor in EPR dosimetry.
- The accelerated alteration of biomineralogy necessitates specialized approaches for dosimetry.
- Current methodologies for assessing historical radiation doses need refinement.