在放射性同位素X射线荧光分析技术中,平衡辐射体装置是解决基体效应和邻近元素干扰的一种有效方法。本文介绍的装置专门用在样品中主干扰元素含量高于被测元素含量,同时主干扰元素的原子序数又略低于被测元素的场合。文章介绍了装置的原理、结构以及测定某铜矿铜精矿中铜元素的分析结果,相对误差≤4％者占样品总数的98％。 In the radioisotope X-ray fluorescence analysis technology, the balanced radiator device is to solve the matrix effect and adjacent elements of an effective method. This article describes the device specifically used in the sample main interference element content is higher than the measured element content, while the main interference element atomic number is slightly lower than the measured element of the occasion. The article introduced the principle of the device, the structure and the determination of copper in a copper ore concentrate. The relative error ≤4% accounted for 98% of the total sample.