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我们用纸色层分离-反应堆中子照射-Ge(Li)γ射线谱分析的方法测定铀矿石中~(235)U/~(238)U的值。 1.原理 天然铀主要由~(235)U、~(235)U组成,在热中子照射下,发生下列二个主要的核反应:
We determined the value of ~ (235) U / ~ (238) U in uranium ores by paper color separation-reactor neutron irradiation -Ge (Li) γ-ray spectrometry. 1. Principle Natural uranium is mainly composed of ~ (235) U, ~ (235) U. Under thermal neutron irradiation, the following two main nuclear reactions occur: