Search results for "Pulsed EPR"

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Pulsed EPR analysis of tooth enamel samples exposed to UV and gamma-radiations

2011

Abstract The electron paramagnetic resonance (EPR) spectroscopy is widely applied for retrospective dosimetric purposes by means of quantitative detection of radicals in tooth enamel and bone samples. In this work we report a study by cw and pulsed EPR on two samples of human tooth enamel respectively irradiated by UV (254 nm) and γ-exposed. The continuous wave (cw) EPR spectra have shown the usual presence in both samples of two types of CO 2 − radicals, with axial and orthorombic g tensors. We have obtained the electron spin echo detected EPR (ED-EPR) spectra at 80 K of the two samples, and we have shown that they are suitable to mark the difference between the effects produced by the dif…

RadiationEnamel paintESR dosimetryPulsed EPR dosimetry tooth enamelChemistryPulsed EPRAnalytical chemistryESR spectroscopyTooth enamelSpectral linelaw.inventiontooth enamelmedicine.anatomical_structureNuclear magnetic resonancelawvisual_artvisual_art.visual_art_mediummedicineContinuous waveIrradiationESR spectroscopy; tooth enamel; ESR dosimetrySpectroscopyElectron paramagnetic resonanceInstrumentation

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