【摘要】 介绍了一种新型便携式高灵敏度X射线荧光仪的研制及其在地质勘查中的初步应用。仪器基于电致冷Si-PIN半导体X射线探测器和微机多道(2048道)谱仪系统,整机重4.2kg(探头重0.8kg)。以同位素源产生的X射线激发样品,对铜、锌、砷等元素的分析检出限为10×10-6g/g,适用于野外现场的天然岩石、土壤和水系沉积物的多元素含量的定量测定,以及工业原料、半成品、产品快速分析。更多还原

【Abstract】 A high sensitive portable X-ray fluorescence analyzer and the application of FPXRF in geological prospecting are introduced. The analyzer is composed of a Si-PIN X-ray detector with thermo-electrical cooler, isotope sources and a 2048-channel MCA based on PC/104 computer. The analyzer is about 4.2 kg in weight, and 30 cm×28 cm×14 cm in size. The analytical detection limits are about 10×10^-6g/g for Cu, Zn, As and other mineral elements. This analyzer can be used to in-situ determination on multi-element concentration of natural rocks, soil and other mineral products.更多还原