Radiation dose estimation by tooth enamel EPR dosimetry for residents of Dolon and Bodene.
The method of electron paramagnetic resonance (EPR) dosimetry was applied to the enamel of the teeth extracted from the residents of the Dolon and Bodene settlements of the Beskaragay district, which is the area adjacent to the radioactive fallout of the most contaminating nuclear test of 1949. The individual accidental radiation doses due to the fallout were obtained from the amplitude of the radiation induced EPR signal from the CO2- radical using the calibration method, after determining the parameters of EPR measurements to obtain the best reproducibility of the signal intensities. It was shown that after subtracting the natural background dose from the total absorbed dose obtained by EPR the residents of Dolon and Bodene received accidental radiation doses up to 356 mGy with an average value of 74.1+/-45.5 mGy before 1949 while the younger population received up to about 100 mGy with an average value of 11.5+/-37.7 mGy.
Research Institute for Radiation Biology and Medicine, Hiroshima University, Japan. kassymz@mail.ru
Kassym
K
Zhumadilov
Alexander
A
Ivannikov
Kazbek N
KN
Apsalikov
Zhaxybay
Z
Zhumadilov
Shin
S
Toyoda
Dinara
D
Zharlyganova
Eldana
E
Tieliewuhan
Satoru
S
Endo
Kenichi
K
Tanaka
Chuzou
C
Miyazawa
Tetsuji
T
Okamoto
Masaharu
M
Hoshi
D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D001822:Body Burden; D003743:Dental Enamel; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D007623:Kazakhstan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009689:Nuclear Warfare / Q000706:statistics & numerical data*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods / Q000706:statistics & numerical data*; D011847:Radioactive Fallout / Q000032:analysis*; D011868:Radioisotopes / Q000032:analysis*; D012062:Relative Biological Effectiveness; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors
D011847:Radioactive Fallout; D011868:Radioisotopes