k ₀-NAA for determination of REE in reference materials of ore sources

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• 作者：Caijin Xiao ; Yonggang Yao ; Xiangchun Jin…
• 关键词：Neutron activation analysis ; Rare earth elements ; Effective interaction depth ; Fission interference
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：311
• 期：2
• 页码：1287-1289
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Nuclear Chemistry; Physical Chemistry; Nuclear Physics, Heavy Ions, Hadrons; Diagnostic Radiology; Inorganic Chemistry;
• 出版者：Springer Netherlands
• ISSN：1588-2780
• 卷排序：311

文摘

Multielements, including some rare earth elements, have been determined by k₀-NAA in three types of ore reference materials from Australia Nuclear Science and Technology Organization. The samples were irradiated in China Mianyang Research Reactor. High purity iron wire and Zr foil were used to monitor the neutron spectrum parameters (f, φ_th) at irradiation positions. Uranium fission interferences for Nd, Ce, La were determined and corrected for by Ik₀ method. The effective interaction depth was employed to normalize efficiencies at different counting positions. The results are in good agreement with the values reported other laboratories.