Results of EPR dosimetry for population in the vicinity of the most contaminating radioactive fallout trace after the first nuclear test in the Semipalatinsk test site
Results of EPR dosimetry for population in the vicinity of the most contaminating radioactive fallout trace after the first nuclear test in the Semipalatinsk test site
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DOI：
10.1269/jrr.47.a39
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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：
Ivannikov, Alexander;Zhumadilov, Kassym;Hoshi, Masaharu
将牙釉质电子顺磁共振(EPR)谱方法应用于哈萨克斯坦塞米巴拉金斯克核试验场附近两个村庄(Dolon和Mostik)居民的个人辐射剂量测定。这些村庄位于1949年进行的污染最严重的地面核试验的放射性尘埃痕迹的中轴线附近。研究发现，1949年以前形成牙釉质的多隆居民，牙釉质吸收剂量减去自然本底剂量后得到的过量剂量最高可达440mGy.年轻居民不超过120mGy.对于莫斯提克的居民来说，超额剂量不超过100mGy，无论年龄，但有一名居民的剂量极高，为1.25Gy.这些结果与1949年核试验后领土上的放射性污染模式一致，但有一例剂量极高，应进一步调查。
The method of electron paramagnetic resonance (EPR) spectroscopy for tooth enamel is applied to individual radiation dose determination to residents of two villages (Dolon and Mostik) in the vicinity of the Semipalatinsk nuclear test site in Kazakhstan. These villages are located near the central axis of the radioactive fallout trace of the most contaminating surface nuclear test conducted in 1949. It is found that excess doses obtained by subtraction of natural background dose from dose absorbed in enamel range up to 440 mGy to residents of Dolon, whose enamel was formed before 1949, and do not exceed 120 mGy to younger residents. To residents of Mostik, excess doses do not exceed 100 mGy regardless of age except for one resident with an extremely high dose of 1.25 Gy. These results are in agreement with the pattern of radioactive contamination of the territory after the nuclear test of 1949 except one case of extremely high dose, which should be additionally investigated.