【摘要】 提出了一种用高纯锗γ谱仪测量非平衡样品中长寿命核素放射性活度的方法。提出了"同位素母子体平衡"和"部分平衡"两个测量思想,在此基础上,通过分析非平衡放射系的递次衰变规律,推导出了非平衡钍系和非平衡铀系中长寿命核放射性活度的测量公式。更多还原

【Abstract】 In this work,a method for measuring the long-lived nuclear radioactivity in non-equilibrium environmental samples with a high purity germanium gamma spectrometer is presented. Two measurement ideas of "isotope-balance"and "part-balance"are put forward,on this basis,through successive decay regularity analysis of non-equilibrium radiation system,deduced the measurement formula of long-lived nuclear radioactivity in non-equilibrium thorium series and non-equilibrium uranium series.更多还原