提出k_0-因子的概念,并将实验准确测定的k_0- 因子应用于反应堆中子活化分析,是一个新的动向。目前,使用k_0-因子的方法已取得明显的成绩,实验工作简化为三个监测器同样品一起辐照和测量,随之进行γ测量即可得到所有元素的定量分析结果,其准确度优于5％。三个监测器可以制成合金或利用有机材料制成单一的片状物,这样完全避开了与常规标准有关的 It is a new trend to propose the concept of k_0-factor and apply k_0-factor, which is experimentally determined accurately, to reactor neutron activation analysis. At present, the method using k_0-factor has achieved remarkable results. The experimental work is simplified to irradiate and measure the same sample together with the three monitors. Afterwards, the results of the quantitative analysis of all the elements can be obtained with the γ measurement, which is superior to the accuracy 5%. The three monitors can be alloyed or made of a single sheet of organic material, completely avoiding the need for common standards