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从14MeV中子辐照过的锇靶中分离钨
Separation of Tungsten from Osmium Irradiated with 14 MeV Neutrons
【摘要】 用14MeV中子轰击天然锇靶,取道192Os(n,α)反应生成189W。利用改进的锇蒸馏装置蒸馏OsO4,完成锇与反应产物的分离;通过四苯砷铼沉淀除去铼。使用HPGe探测器测量了分离的钨样品的γ射线谱,该γ射线谱显示钨样品中杂质元素的去污是令人满意的。
【Abstract】 189W was produced via the reaction 192Os(n,α) in 14 MeV neutron bombardment of nature osmium. OsO4 was dis-tilled over by distilling in order to separation of osmium from the reaction products. Rhenium was then removed as tetrapheny-larsonium perrhenate. The γ ray spectrum of the separated tungsten fraction was measured using an HPGe detector. The γ rayspectrum shows decontamination of the impurity elements in the tungsten fraction is quite satisfactory.
【基金】 国家自然科学基金(10075063,10175079);国家重点基础研究发展现划(G2000077400);中国科学院等资助
- 【文献出处】 科学技术与工程 ,Science Technology and Engineer , 编辑部邮箱 ,2003年04期
- 【分类号】TL816
- 【下载频次】27