论文部分内容阅读
在现代Ge(Li)γ能谱学中,多元素复杂能谱的分析,大都以绝对光峰效率的刻度为基础,通过孤立光峰的计算和应用放射性核素衰变纲图的知识展开的。但在天然环境样品的分析中,常因大样品的自吸收,衰变平衡态的严重破坏和γ分支比数据的不齐全,这种以γ衰变数绝对测量为基础的分析方法远不及相对比较测定方法简便有效。但在相对比较测定方法中,一个最常遇到的麻烦手续是能谱方程的求解,在没有电子计算机的条件下,往往会影响这类方法的广泛使用。本文试图提出一种方法,以通过响应矩阵的合理重构,绕过求解方程的麻烦,直接把包含m种核素的含量计算简化成一组简便的运算公式。
In modern Ge (Li) γ spectroscopy, the analysis of complex energy spectra of multi-elements is mostly based on the scale of absolute light peak efficiency. The calculation of isolated light peaks and the application of the knowledge of radionuclide decay profiles. However, in the analysis of natural environment samples, the analysis method based on the absolute measurement of γdetection is often far less than the comparative determination of natural samples due to the self-absorption of large samples, the serious destruction of the decay equilibrium state and the incompleteness of γbranch ratio data The method is simple and effective. However, one of the most common troublesome procedures encountered in relative comparative assays is the solution of spectroscopic equations, which often affect the widespread use of such methods in the absence of electronic computers. This paper attempts to propose a method to simplify the calculation of the content containing m nuclides directly into a simple set of equations by bypassing the hassle of solving the equations by rational reconstruction of the response matrix.