利用牙釉质电子顺磁共振剂量测定法对多隆和博德内居民进行辐射剂量估计。
Radiation dose estimation by tooth enamel EPR dosimetry for residents of Dolon and Bodene.
作者信息
Zhumadilov Kassym, Ivannikov Alexander, Apsalikov Kazbek N, Zhumadilov Zhaxybay, Toyoda Shin, Zharlyganova Dinara, Tieliewuhan Eldana, Endo Satoru, Tanaka Kenichi, Miyazawa Chuzou, Okamoto Tetsuji, Hoshi Masaharu
机构信息
Research Institute for Radiation Biology and Medicine, Hiroshima University, Japan.
出版信息
J Radiat Res. 2006 Feb;47 Suppl A:A47-53. doi: 10.1269/jrr.47.a47.
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.
电子顺磁共振（EPR）剂量测定法被应用于从别斯卡拉盖区多隆和博德内定居点居民口中拔除的牙齿珐琅质上，该地区毗邻1949年污染最严重的核试验的放射性沉降物区域。在确定EPR测量参数以获得信号强度的最佳重现性后，使用校准方法从CO2-自由基的辐射诱导EPR信号幅度中获取因沉降物导致的个体意外辐射剂量。结果表明，从EPR获得的总吸收剂量中减去自然本底剂量后，多隆和博德内的居民在1949年前接受的意外辐射剂量高达356毫戈瑞，平均值为74.1±45.5毫戈瑞，而较年轻人群接受的剂量高达约100毫戈瑞，平均值为11.5±37.7毫戈瑞。
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