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dc.contributor.author刘广山zh_CN
dc.contributor.author黄奕普zh_CN
dc.contributor.author陈性保zh_CN
dc.date.accessioned2011-04-26T08:01:43Z
dc.date.available2011-04-26T08:01:43Z
dc.date.issued1999-09zh_CN
dc.identifier.citation海洋学报(中文版), ACTA OCEANOLOGICA SINICA,1999 21(5):65-71zh_CN
dc.identifier.issn0253-4193zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/1436
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. 【英文摘要】 After 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.zh_CN
dc.description.sponsorship国家自然科学基金!49676296zh_CN
dc.language.isozhzh_CN
dc.publisher中国海洋学会zh_CN
dc.subject镭同位素zh_CN
dc.subject锰纤维zh_CN
dc.subject海水zh_CN
dc.subjectγ能谱法;zh_CN
dc.subjectRadium isotopeszh_CN
dc.subjectMn-fiber;zh_CN
dc.subjectsea waterzh_CN
dc.subjectγ-spectromentry;zh_CN
dc.title锰纤维富集-γ能谱法测定海水中的~(224)Ra、~(226)Ra和~(228)Razh_CN
dc.title.alternativeMeasurement of ~(224)Ra, ~(226)Ra and ~(228)Ra in sea water using Mn-fiber adsorption-γ spectrum methodzh_CN
dc.typeArticlezh_CN


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