论文部分内容阅读
本文叙述了γ射线激发的 X 射线荧光计对10克/升以下的铀溶液,特别是对不纯的低浓度铀溶液进行分批取样分析的应用情况,并给出了γ射线激发的 X 射线源的设计详图,以及用反散射后的λ射 X 射线与荧光 X 射线之比作为补偿基体溶液变化的方法的概要。方法对纯溶液的检出下限是30毫克/升,而对一些典型的不纯溶液的检出下限则为50毫克/升。在铀浓度为0.1至10克/升的范围内,准确度达士5%;而在0.05至0.1克/升的浓度范围内,准确度是±30%。
This paper describes the application of γ-ray excited X-ray fluorimeter on 10 g / L uranium solution, especially for impure low concentration uranium solution batch sampling analysis, and gives the γ-ray excited X-ray Design detail of the source, and a summary of the method of compensating for the change of the base solution by the ratio of the backscattered λ-ray X-ray to the fluorescent X-ray. The lower detection limit for the pure solution is 30 mg / l for the method and 50 mg / l for some typical impure solutions. Accuracy is 5% at uranium concentrations ranging from 0.1 to 10 g / l and ± 30% at concentrations ranging from 0.05 to 0.1 g / l.