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dc.contributor.author刘广山
dc.contributor.author黄奕普
dc.contributor.author陈性保
dc.date.accessioned2016-05-17T02:29:52Z
dc.date.available2016-05-17T02:29:52Z
dc.date.issued1999
dc.identifier.citation海洋学报(中文版),1999,(5):65-71
dc.identifier.issn0253-4193
dc.identifier.otherSEAC199905007
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/105018
dc.description.abstract采用锰纤维富集大体积海水中的镭同位素,继用HPgEy谱仪通过测定子体发射的y射线测定了海水中224rA、226rA和228rA的比活度.推导了3种核素比活度的计算公式,讨论了样品处理和谱分析方法.该法简单、快速,省却了化学分离的繁杂过程,可同时测定3种核素.
dc.description.abstractAfter preconcentration of Ra isotopes using Mn-fiber adsorption from large volume sea water, the specific activities of 224Ra, 226Ra and 228Ra are measured through measuring γ- rays of their daughters by HPGe γ-spectrometer.The calculating formulas of specific activities of the three nuclides are derived.The sample preparation and spectrum analysis method are discussed.The advantages of this method are simple, rapid, and three nuclides can be determined simultaneously.
dc.description.sponsorship国家自然科学基金!49676296
dc.language.isozh_CN
dc.subject镭同位素
dc.subject锰纤维
dc.subject海水
dc.subjectγ能谱法
dc.subjectRadium isotopes
dc.subjectMn-fiber
dc.subjectsea water
dc.subjectγ-spectromentry
dc.title锰纤维富集-γ能谱法测定海水中的--(224)Ra、--(226)Ra和--(228)Ra
dc.title.alternativeMeasurement of --(224)Ra, --(226)Ra and --(228)Ra in sea water using Mn-fiber adsorption-γ spectrum method
dc.typeArticle


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