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14MeV快中子活化分析已在矿样、地质、考古和生物等样品的分析工作中获得了广泛的应用。一般来说,在10~9n/cm~2·s通量的条件下,14MeV快中子活化分析的测量灵敏度可达0.1～1mg。但是快中子引起的γ谱,包括基体引起的在内,一般都比较复杂,而且有些生成核能级的辽电子俘获或内转换系数又特别大,由此发射的特征X射线数目比γ跃迁发射的γ射线数目大很多,即X/γ的值很大。对于这些核素,我们可测量它的缓发X射线谱,它比γ谱清晰得多,预计分辨能力也会更好些。
14MeV fast neutron activation analysis has been widely used in the analysis of samples of minerals, geology, archeology and biology. In general, the measurement sensitivity of 14MeV fast neutron activation analysis can reach 0.1 ~ 1mg under the condition of 10 ~ 9n / cm ~ 2 · s flux. However, the γ spectra caused by fast neutrons, including those caused by the matrix, are generally more complicated, and some of the electron-trapping or internal conversion coefficients of the electron-generating LES are particularly large. The number of characteristic X-rays emitted thereby is higher than that of the γ-transition The number of gamma rays is much larger, ie the value of X / γ is very large. For these nuclides, we can measure its delayed X-ray spectrum, which is much clearer than the gamma spectrum and is expected to have better resolution.