Variability of parameters in retrospective EPR dosimetry with teeth for Ukrainian population.
Variability of EPR signal parameters in retrospective dosimetry with teeth has been studied among five different oblasts (regions) of Ukraine. It was found that the native signal in enamel is region-invariant and has peak-to-peak width of 0.85+/-0.01 mT and intensity of 1.0+/-0.20 normalized units. Low-frequency background signals in the spectra of enamel, expressed in terms of dose were estimated to represent 1520 mGy. Variability of radiation sensitivity among different teeth (inter-sample variability measured using 100 mg aliquots) was (+/-)4% while among different parts of one tooth (intra-sample variability measured using 5-10 mg aliquots)--(+/-)7%.
Sholom
S V
SV
Scientific Center of Radiation Medicine, Melnikova str., 53, Kiev, Ukraine.
Chumak
V V
VV
D000328:Adult; D001822:Body Burden; D004307:Dose-Response Relationship, Radiation; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods*; D006801:Humans; D066298:In Vitro Techniques; D008875:Middle Aged; D008963:Molar / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods; D011874:Radiometry / Q000379:methods*; D012062:Relative Biological Effectiveness; D015203:Reproducibility of Results; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D012680:Sensitivity and Specificity; D014455:Ukraine / Q000453:epidemiology