Study of the dosimetry system and health effects for the residents near Semipalatinsk nuclear test site -Construction of the data base and study of radiation risks-

塞米巴拉金斯克核试验场附近居民剂量测定系统及健康影响研究-数据库建设与辐射风险研究-

基本信息

批准号：
17406001
负责人：
HOSHI Masaharu
金额：
$ 8.64万
依托单位：
Hiroshima University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17406001/
关键词：
Semipalatinsk Nuclear weapons tests Fallout Environmental dose Soil Contamination External dose Survivors

项目摘要

In March 2005, we hold the international workshop at Hiroshima University. The results were published in the supplement of the Journal of Radiation Research Vol. 47 sup. Al-A224 (29 papers). There was a large difference in the estimations of radiation doses by different methods. We discussed about the Dolon village study. They were 1. TLD measurements using brick samples, 2. ESR measurements using tooth enamel samples, 3. Calculation of dose from radioactive clouds, 4. Cs-137 measurements in soil samples and dose calculation, 5. Chromosome aberration study. In conclusion, the results are about 0.5 Gy by TLD, from 0.1 to 0.5 Gy by tooth enamel measurements, about 0.5 Gy from Cs measurements in soil, and about 0.5 Gy by calculation. These values became agree each other. Thus, the contradiction was solved. In addition, chromosome aberration study suggests about 0.3 Gy, which showed also no contradiction. The former values schattered from 0 to 2 Gy but this became close each other about 0.5 Gy for the people outside. The radioactive clouds passed near Dolon village. The distance from the center of the trace to the village was found to be very sensitive. Therefore samples were collected across the trace of the radioactive cloud perpendicularly to the trace over about 10 km length. Tooth enamels are collected and measured. Blood samples are corrected and chromosome aberration and a spot mutation in the genes were studied. Questionnaire for individual dosimetry was made and used for the people there. Another questionnaire was taken to study the mental effects and to collect testifies from the people living in this area. Now data base had been constructed and this is almost finishing. Our future tasks are to estimate the individual doses and the radiation risks using them. The radiation risk estimation is started with Germany group.

2005年3月，我们在广岛大学举办了国际研讨会。研究结果发表在《辐射研究杂志》第 1 卷的增刊上。 47 上。 Al-A224（29 篇论文）。不同方法对辐射剂量的估算存在较大差异。我们讨论了多伦村研究。它们是 1. 使用砖样品进行 TLD 测量，2. 使用牙釉质样品进行 ESR 测量，3. 计算放射性云的剂量，4. 土壤样品中的 Cs-137 测量和剂量计算，5. 染色体畸变研究。总之，TLD 测量结果约为 0.5 Gy，牙釉质测量结果约为 0.1 至 0.5 Gy，土壤中 Cs 测量结果约为 0.5 Gy，计算结果约为 0.5 Gy。这些价值观变得彼此一致。这样，矛盾就解决了。另外，染色体畸变研究表明约为0.3Gy，这也没有矛盾。之前的值从 0 到 2 Gy 不等，但对于外面的人来说，这个值变得接近约 0.5 Gy。放射性云经过多伦村附近。发现从痕迹中心到村庄的距离非常敏感。因此，在大约 10 公里长的放射性云迹线上垂直于迹线收集样本。收集并测量牙釉质。对血液样本进行校正，并对染色体畸变和基因点突变进行研究。为那里的人们制作并使用了个人剂量测定问卷。另一份问卷调查是为了研究心理影响并收集居住在该地区的人们的证词。现在数据库已经搭建完毕，即将完成。我们未来的任务是估计个体剂量和使用它们的辐射风险。辐射风险评估是由德国集团开始的。