Based on the basic parameters of the ratio of characteristic X ray to scattered rays from source of the object elements, a mathematical model for the object element grade of the ore and a judgement expression for main disturbing elements are presented. 本文提出了以目标元素的特散比为基本参数建立求解矿石目标元素品位的数理方程和判别主要干扰元素的判据,提出了克服矿化不均匀效应的最佳测网。
The relation between the intensity of the scattered γ-rays and the various water depths was studied by using a~ ( 46) Sc plane source. 利用~(46)Sc制成的平面源,仔细研究了探测器在不同水层厚度复盖条件下,γ射线反散射作用的影响。
Results The interference of scattered rays as eliminated by linear scanning imaging technique. The later had high detection sensitivity and density resolution. 结果线扫描成像技术克服了散射线造成的干扰,且探测灵敏度和精密度分辨率高。
FTABS can estimate the scattered rays effectively only by the response function matrix which is established by gaussian function. Using this method, the response function is simpler and has higher practicality in full spectrum analysis. 有效扣除散射本底,可以采用简单的高斯函数建立响应函数矩阵,降低谱线解析过程中响应函数建立的难度,达到全谱解析方法的实用化。