Dosimetric response of tooth enamel to 14 Mev neutrons

P. Fattibene, M. Angelone, V. De Coste, M. Pillon

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Abstract

The electron paramagnetic resonance (EPR) response of tooth enamel in a monenergetic neutron beam of 14 MeV was studied, with the aim to evaluate the relative neutron to 6°Co sensitivity. Three samples of tooth enamel powder were irradiated in air. A whole tooth and a powdered sample were irradiated in a geometrical PMMA phantom, in order to simulate the real exposure of a tooth inside a human head. The measured dose in enamel was compared to the dose calculated by Monte Carlo simulation. The relative neutron to 6°Co sensitivity using different reference materials (air, water and enamel) was evaluated as well. Large differences in sensitivity values were found depending on the reference material: the obtained relative neutron to 6°Co sensitivity was 0.47±0.09 for enamel and 0.15±0.03 for water. A comparison with results in fast neutron fields is reported.
Original languageEnglish
Pages (from-to)85 - 90
Number of pages6
JournalRadiation and Environmental Biophysics
Volume43
Issue number2
DOIs
Publication statusPublished - 2004
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Biophysics
  • Radiation
  • Environmental Science(all)

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