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Radiat Prot Dosimetry. 2012 Mar;149(1):71-8. doi: 10.1093/rpd/ncr446. Epub 2011 Nov 28.

Review of reconstruction of radiation incident air kerma by measurement of absorbed dose in tooth enamel with EPR.

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Helmholtz Zentrum M√ľnchen-German Research Center for Environmental Health, Institute of Radiation Protection, D-85764 Neuherberg, Germany.


Electron paramagnetic resonance dosimetry with tooth enamel has been proved to be a reliable method to determine retrospectively exposures from photon fields with minimal detectable doses of 100 mGy or lower, which is lower than achievable with cytogenetic dose reconstruction methods. For risk assessment or validating dosimetry systems for specific radiation incidents, the relevant dose from the incident has to be calculated from the total absorbed dose in enamel by subtracting additional dose contributions from the radionuclide content in teeth, natural external background radiation and medical exposures. For calculating organ doses or evaluating dosimetry systems the absorbed dose in enamel from a radiation incident has to be converted to air kerma using dose conversion factors depending on the photon energy spectrum and geometry of the exposure scenario. This paper outlines the approach to assess individual dose contributions to absorbed dose in enamel and calculate individual air kerma of a radiation incident from the absorbed dose in tooth enamel.

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