前言放射性同位素X射线荧光技术是近年来迅速发展起来的、可用于野外对元素直接进行定性、定量测定品位的一种新方法。它在地质勘探、开采、选矿、冶炼等工作中有着广泛的应用。这种方法所用的仪器轻便,测量速度快(只需数十秒钟),可测元素广泛,且无需经过化学处理就能直接对粉末样品、岩芯或钻井巷壁固体矿石和液体矿样测定待测元素的含量,划分矿层厚度,计算线储量。这种技术当前在国外已广泛使用。1979年成都地院研制成功科研样机,1980年与重庆地质仪器厂协作制成了JXY— Introduction Radioisotope X-ray fluorescence technology is rapidly developed in recent years, can be used in the field of elements directly qualitative, quantitative determination of a new method. It has a wide range of applications in geological exploration, mining, mineral processing, smelting and other work. The instruments used in this method are light, fast (in just tens of seconds), have a wide range of measurable elements, and are capable of directly measuring powder samples, core or laneway solid ores and liquid minerals without chemical treatment The content of the element to be tested, the thickness of the ore layer, and the calculation of the line reserves. This technology is currently widely used abroad. In 1979, Chengdu Institute successfully developed scientific research prototype, in 1980 and Chongqing Geological Instrument Factory collaborative made JXY-