PDF(Pubmed)
Abstract：
For correct assessment of health risks after low-dose irradiation, calculation of radiation exposure estimates is crucial. To verify the calculated absorbed doses, instrumental methods of retrospective dosimetry are used. We compared calculated and instrumental-based estimates of external absorbed doses in the residents of Dolon, Mostik and Cheremushki villages, Kazakhstan, affected by the first nuclear weapon test performed at the Semipalatinsk Nuclear Test Site (SNTS) on August 29, 1949. The \'instrumental\' doses were retrospectively estimated using the Luminescence Retrospective Dosimetry (LRD) and Electron Spin Resonance (ESR) methods. Correlation between the calculated individual cumulative external absorbed whole-body doses based on typical input data and ESR-based individual doses in the same people was strong (r = 0.782). It was even stronger between the calculated doses based on individual questionnaires\' input data and the ESR-based doses (r = 0.940). Application of the LRD method is useful for validation of the calculated settlement-average cumulated external absorbed dose to air. Reconstruction of external exposure can be supplemented with the data from later measurements of soil contamination with long-lived radionuclides, such as, 137Cs. Our results show the reliability of the calculational method used for the retrospective assessment of individual external doses.
摘要：
为了正确评估低剂量照射后的健康风险，辐射暴露估计的计算是至关重要的。为了验证计算的吸收剂量，使用回顾性剂量测定的仪器方法。我们比较了杜隆居民外部吸收剂量的计算和基于仪器的估计值，Mostik和Cheremushki村庄，哈萨克斯坦,受到1949年8月29日在塞米巴拉金斯克核试验场（SNTS）进行的第一次核武器试验的影响。使用发光回顾性剂量测定（LRD）和电子自旋共振（ESR）方法回顾性估计仪器剂量。基于典型输入数据计算的个体累积外部吸收全身剂量与同一人中基于ESR的个体剂量之间的相关性很强（r=0.782）。在基于个人问卷输入数据的计算剂量和基于ESR的剂量之间，它甚至更强（r=0.940）。LRD方法的应用可用于验证计算出的沉降平均累积的外部吸收剂量。重建外部暴露可以补充来自长期放射性核素对土壤污染的后续测量数据，例如,137Cs。我们的结果表明了用于回顾性评估单个外部剂量的计算方法的可靠性。
