Dosimetry study and radiation effects for the residents near Semipalatinsk nuclear test site

2003年至2004年期间最重要的研究活动之一是2005年3月9日至11日在广岛大学举行的讲习班（第三届杜隆-塞米巴拉金斯克国际剂量学讲习班），该讲习班得到了日本科学促进机构的支持。该讲习班是在2002年9月在塞米巴拉金斯克举行的剂量测定讲习班之后计划举办的。共有63名演讲者，其中包括26名外国演讲者。该讲习班的主要议题是多隆剂量测定法。我们已经进行了两年的研究。主要科目有1.使用砖样品的热释光剂量测定（XLS）的国际比对，2。牙釉质剂量学ESR法; 3.计算放射性云的辐射，4。土壤中的放射性测量和5。染色体畸变检测总之，ESR指示0.5戈伊，ESR从0.1到0.5戈伊，由于放射性云中心的变化而校正的计算结果约为0.5戈伊，染色体畸变研究尚不清楚，但其中一项研究指示0.3戈伊，这与其他结果不矛盾。由于这些结果，我们可以得出结论，在多隆0.5戈伊是最有可能的，另一方面，以前的估计波动在0至2戈伊。这是最重要的结果。主要问题已经解决，因此我们应该进行个人剂量测定。在塞米巴拉金斯克的研究是由金泽大学的Yamamoto博士小组进行的，在Saljal、Karaul、Kokpecti等地的研究是由Takeichi博士小组进行的。田中博士小组也研究了染色体畸变和微核率。片山博士安装了我们的计算机服务器并建立了数据库。

One of the most important occasion of the study within the years from 2003 to 2004, is the workshop (3rd international workshop for the dosimetry in Dolon Semipalatinsk) held at Hiroshima University on 9-11 March, 2005, which was supported by Science promotion agency in Japan. This workshop was planned after the dosimetry workshop which was held in Semipalatinsk in September 2002. The presentations were 63 including 26 foreign speakers. The main topic of this workshop was the Dolon dosimetry. We have been performed research for 2 years. The major subjects are 1. international intercomparison of thermoluminescence dosimetry (TLD) using brick samples, 2. tooth enamel dosimetry by ESR method, 3. calculation of radiation from radioactive clouds, 4. measurements of radioactivity in soil and 5. chromosome aberration detection. In conclusion, TLD indicates 0.5 Gy, ESR does from 0,1 to 0.5 Gy, the calculation corrected due to the change of the center of radioactive clouds resulted in about 0.5 Gy, the chromosome aberration studies were not clear but one of the study indicated 0.3 Gy, which was not contradict to the other results. Due to these result we can conclude 0.5 Gy in Dolon is most probable on the other hands the former estimations fluctuated from 0 to 2 Gy. This is the most important result. The major problem has been solved therefore we should proceed to personal dosimetry.The study in Semipalatinsk was performed with Dr.Yamamoto's group, Kanazawa University, examined with Dr.Takeichi's group in Saljal, Karaul, Kokpecti and etc. The chromosome aberration and yield of micro nuclei have been studied with Dr.Tanaka's group also. Dr.Katayama installed our computer server and constructing databases.