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

2003年至2004年研究最重要的一个场合是2005年3月9日至11日在广岛大学举行的研讨会（第三届国际剂量学研讨会在Dolon Semipalatinsk），该研讨会得到了日本科学促进机构的支持。这个讲习班是在2002年9月在塞米巴拉金斯克举行的剂量学讲习班之后计划的。演讲共有63人，其中包括26名外国演讲者。这次研讨会的主要议题是多隆剂量学。我们已经进行了两年的研究。主要科目是1。砖样热释光剂量法（TLD）的国际比较；2 . ESR法测定牙釉质剂量；3 .放射性云辐射的计算。土壤和土壤中的放射性测量。染色体畸变检测。综上所述，TLD为0.5 Gy， ESR为0,1 ~ 0.5 Gy，由于放射性云中心的变化，计算修正后约为0.5 Gy，染色体畸变研究不明确，但其中一项研究为0.3 Gy，这与其他结果并不矛盾。由于这些结果，我们可以得出结论，在Dolon的0.5 Gy是最有可能的，另一方面，以前的估计在0到2 Gy之间波动。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与金泽大学山本博士的小组一起进行的，与武市博士的小组在萨尔加尔、卡拉乌尔、Kokpecti等地进行了检查。田中博士研究组还对染色体畸变和微核产率进行了研究。片山博士安装了我们的电脑服务器，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.