【摘要】 本文叙述了¹⁴⁷Pm的分离、纯化、溶液组成及其稳定性,发展和建立了制备¹⁴⁷Pm放射性标准溶液的方法。¹⁴⁷Pm溶液的放射性活度采用效率示踪和液体闪烁两种方法测量。实验检验和应用的结果表明,本文所提供方法是可靠的,完全符合放射性计量标准要求,并已在国内得到了广泛的应用。更多还原

【Abstract】 This paper describes systematically 147Pm separation, purification, solution constituents and its stability. The method for the preparation of standardized radioactive 147PM, solution with simple constituents is developed and established. The radioactivity of 147Pm solution is measured with both liquid scintillation counting and efficiency tracer method. The uncertainty of measurement is less than 0.5%. The results obtained in the experiment and in the applications in different laboratories during the past four years have shown that our method is effective and reliable.更多还原