文章基本信息

标题：Determination of Absorbed and Annual Effective Doses around Birnin Gwari Artisanal Goldmine, Kaduna State, Nigeria
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作者：Y.I. Zakari ; R. Nasiru ; M.A. Abdullahi 等
期刊名称：Research Journal of Environmental and Earth Sciences
印刷版ISSN：2041-0484
电子版ISSN：2041-0492
出版年度：2013
卷号：5
期号：05
页码：252-255
出版社：Maxwell Science Publications
摘要：This study presents result of outdoor absorbed dose rate and estimated annual effective dose rate from the naturally occurring radionuclides ²³⁸U, ²³²Th and ⁴⁰K around BirninGwari artisanal goldmine using Instrumental Neutron Activation Analysis (INAA). The results showed that the mean absorbed dose rate is 96.52 nGy/h with a standard deviation of 33.3 nGy/h and the standard error of 9.62 nGy/h the range falls between 26.67-123.85 nGy/h. The mean effective dose rate was estimated to be 0.675 mSv/year with a standard deviation of 0.234 mSv and standard error of 0.068 mSv and in range between 0.183-0.867 mSv. The mean annual effective dose rate from this work is lower than the 1mSv/year recommended by ICRP for public radiation exposure control.
关键词：Absorbed dose rate ; effective dose rate ; neutron activation analysis ; radionuclides ; ;