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为了分析选矿广的矿浆或溶液,芬兰的奥托昆普公司发展了一种使用放射性同位素为辐射源的探头。分析的元素一般为铬、锰、铁、钴、镍、铜、锌、铅;用反散射来测定矿浆密度。每个探头能同时测定五种元素的含量及矿浆密度。所设计的探头可直接浸入到矿浆流或安装在由主矿流样品连续通过的流通式样品盒上。小型计算机用来计算X射线荧光强度的分析数据和提供报告。探头获得的精度:对原矿流和精矿流为1～5％;对尾矿流为5～15％。
Outokumpu, Finland, has developed a probe that uses radioactive isotopes as a radiation source in order to analyze a wide range of beneficiated pulp or solution. The elements analyzed were generally chromium, manganese, iron, cobalt, nickel, copper, zinc and lead; the density of the pulp was determined by backscattering. Each probe can simultaneously determine the content of five elements and pulp density. The probe is designed to be immersed directly in the flow of slurry or on a flow-through cartridge that is continuously passed by the main stream sample. Small computers are used to calculate X-ray fluorescence intensity data and provide reports. The accuracy of the probe: 1 to 5% for the raw ore and concentrate flows and 5 to 15% for the tailings flows.