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External Dose Reconstruction of Radiation Exposure under Low Dose Rate in Long Term around Semipalatinsk Nuclear Weapon Test Site

塞米巴拉金斯克核武器试验场周围长期低剂量率辐射照射的外剂量重建

基本信息

批准号：
14380253
负责人：
TAKADA Jun
金额：
$ 5.44万
依托单位：
Sapporo Medical University (2004)Hiroshima University (2002-2003)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14380253/
关键词：
Semipalatinsk dosimetry TLD ESR small nuclear weapon terrorism radiation Protection 外部被曝線量核兵器

项目摘要

The purpose of this study is external dose reconstruction for population around the former Soviet UnionSemipalatinsk Nuclear Weapon Test Site from discussion on thereto luminescence dosimetry on brick and electron spin resonance on tooth enamel exposed to nuclear radiation.The influence of the sun light revelation on enamel ESR dosimetry has been studied. For g □=2.0018, a dose of 50-70 kJ/cm2 for sun light is equivalent to a y dose of 1 Gy. We understand sun light irradiation influence of a tooth in the mouth for dozens of years afteryradiation exposure. In addition to past transient gamma ray radiation exposure, sun light exposure of a long term to a mouth is added as a part of ESR dose.There is a tendency that an ESR dose on a tooth is considerably lower than a brick TLD dose. External dose for Dolon village is estimated to be 0.71+_-4.14 Gy from TLD, on the other hand is estimated to be 0.l-0.2 Gy for two Dolon village inhabitants (59 years old and 58 years old) from ESR. In additi … More on, their age in the first nuclear explosion in 1949 is estimated to be about 10 years old. Confirmation of residential records of the inhabitants is necessary.We analyzed long-term nuclear hazards in and around surface nuclear explosion which we discovered bylocal investigation of 2002. The crater size of 30 m in diameter suggests a nuclear surface explosion with 0.1-0.3 kt output. This corresponds to experiments in 1961 on an experiment chronological table of the Soviet Union tunes that the Russian Atomic Energy Ministry and Department of Defense reported in 1996.Radioactive fallout after surface nuclear explosion is a main source of radiation exposure of these residence ward inhabitants. We think that development of radiation protection computer system as nucleus anti-disaster measures is demanded in future about a problem in a direction of a nation protection basis indicator of nuclear terrorism measures. Research work in and around the nuclear weapon test site of the former Soviet Union should be useful for this purpose. Less

本研究的目的是通过对核辐射照射后砖体发光剂量测定和牙釉质电子自旋共振（ESR）剂量测定的讨论，重建前苏联塞米巴拉金斯克核武器试验场周围人群的外照射剂量，并研究了太阳光照对牙釉质ESR剂量测定的影响。对于g □=2.0018，50-70 kJ/cm 2的太阳光剂量相当于1戈伊的y剂量。我们了解太阳光照射对牙齿在口腔中的影响，在辐射暴露后的几十年。除了过去短暂的伽马射线辐射照射外，口腔长期的阳光照射也被加入ESR剂量的一部分。有一种趋势是，牙齿上的ESR剂量大大低于砖块照射剂量。Dolon村的外照射剂量估计为0.71+_-4.14戈伊，另一方面，来自ESR的两名Dolon村居民（59岁和58岁）的外照射剂量估计为0.1 -0.2戈伊。此外， ...更多信息而在一九四九年第一次核爆时，年龄估计在十岁左右。对2002年当地调查发现的地表核爆炸及其周边地区的长期核危害进行了分析。直径为30米的弹坑表明发生了0.1-0.3千吨的地面核爆炸。这与俄罗斯原子能部和国防部1996年报告的1961年苏联曲调实验年表上的实验相对应。地面核爆炸后的放射性沉降物是这些居民区居民受辐射的主要来源。我们认为，在未来的核防灾措施的辐射防护计算机系统的发展需要在一个方向的核恐怖主义措施的国家防护基础指标的问题。在前苏联核武器试验场及其周围进行的研究工作应有助于实现这一目的。少