Radiation dose estimation by tooth enamel EPR dosimetry for residents of Dolon and Bodene
Radiation dose estimation by tooth enamel EPR dosimetry for residents of Dolon and Bodene
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DOI：
10.1269/jrr.47.a47
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发表时间：
2006-02-01
影响因子：
2
通讯作者：
Hoshi, Masaharu
中科院分区：
文献类型：
--
作者：
Zhumadilov, Kassym;Ivannikov, Alexander;Hoshi, Masaharu
电子顺磁共振 (EPR) 剂量测定方法应用于贝斯卡拉盖 (Beskaragay) 地区多隆 (Dolon) 和博登 (Bodene) 定居点居民的牙釉质，该地区是 1949 年污染最严重的核试验的放射性沉降物附近的地区。在确定了 EPR 测量参数后，使用校准方法从 CO2- 自由基辐射引起的 EPR 信号振幅中获得了沉降物引起的个体意外辐射剂量。获得信号强度的最佳再现性。结果表明，从 EPR 获得的总吸收剂量中减去自然本底剂量后，多隆和博登居民在 1949 年之前接受的意外辐射剂量高达 356 mGy，平均值为 74.1 +/- 45.5 mGy，而年轻人口接受的意外辐射剂量高达约 100 mGy，平均值为 11.5 +/- 37.7 mGy。
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.