| 赵淑权,孙连陞.尿钚裂变径迹分析方法与马绍尔居民钚－239内照射剂量的估算[J].中华放射医学与防护杂志,1995,15(4):237-242.Zhao Shuquan.Fission track analysis method of urine plutonium and estimation of plutonium-239 internal dose to Marshallese[J].Chin J Radiol Med Prot,1995,15(4):237-242 |
| 尿钚裂变径迹分析方法与马绍尔居民钚－239内照射剂量的估算 |
| Fission track analysis method of urine plutonium and estimation of plutonium-239 internal dose to Marshallese |
| 投稿时间：1994-11-17 修订日期：1995-05-04 |
| DOI： |
| 中文关键词: 钚－239 放射性落下灰 裂变径迹分析 内照剂量估算 尿钚分析 马绍尔群岛 |
| 英文关键词:Marshall Islands Bravo fallout plutonium urinalysis fission track analysis |
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| 中文摘要: |
| 作者介绍了尿钚裂变径迹分析法(简称FTA),剂量评估的现代资料,总结了1981年～1991年中Rongelap和Utirik岛居民钚-239内照剂量估算的结果。目前FTA钚-239的探测水平(99%)为2～3μBq,这相当于马绍尔居民到70岁时,0.2～0.3mSv的有效剂量当量(EDE).大多数样品均低于该探测水平。1991年,由于少数几个高数据,使平均值偏高,因而Rongelap和Utirik岛居民的钚-239平均有效剂量当量估计为0.62和1.6mSv.这是自从1988年以来的最高值。 |
| 英文摘要: |
| Bravo detonated at Bikini Atoll on the morning of March 1, 1954,unexpectedly released a large amount of radioactive fallout on the areas.Impact studies on the radiological health and safety of the residents living in the contaminated environments are still undergoing. For plutonium dose assessment.researchers at Brookhaven National Laboratory established a fission track analysis (FTA) method for low-level 239Pu measurement. Furthermore, a new shipboard protocol was developed for collecting 24-h radiologically clean urine sampies. The purposes of this paper are to update information on the FTA processes and to present a set of results on the 239Pu measurements in the Marshallese populations (Rongelap and Utirik) between 1981-1991. The detection sensitivity of FTA method(99% confidence level)in these samples was 2-3 μBq which is equivalent to 0.2-0.3 mSv effective dose equivalent (EDE) to age 70 for the Marshallese.The latest 1991 FTA data indicate average EDE of 0.62mSv and 1.6 mSv for the people of Rongelap and Utirik, respectively, which both are the highest values since 1988. |
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