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井中X辐射取样是一种原位的、非破坏性的和无污染的定量测定井（孔）岩矿石中元素含量（或品位）的高新技术。本文论述了该技术的基本原理、仪器设备和实用的数学模型。经铅、锌矿模型实验和野外锶矿测井试验表明：（1）井中X辐射取样技术与传统的岩芯化学分析方法具有同等的准确度；（2）井中X辐射取样技术，可在现场实施提供取样结果，其耗费的时间周期还不到传统方法的1／30
In-well X-ray sampling is an in-situ, non-destructive and pollution-free high-tech for quantitative determination of elemental content (or grade) in rock ores. This article discusses the basic principles of the technology, equipment and practical mathematical models. The lead and zinc ore model experiments and the field strontium ore logging test show that: (1) X-ray sampling technology in well has the same accuracy as conventional core chemical analysis methods; (2) X-ray sampling technique in well can be used on site The time it takes to implement the sampling results is less than 1/30 of the traditional method