Nuclear instrumentation - spectrometry - characterization of the spectrum background in hpge nuclear gamma - ray spectrometry 核仪器装置.光谱测定法. hpge核射线光谱测定法中光谱底色的特性
Studying of gamma - ray data acquisition system is one of important items , which is used to acquire and process gamma - ray spectrometry data 而其中获取和处理射线能谱多道数据的射线能谱数据采集系统的研究则是其中重要的课题之一。
The simple test shows that this system is reliable and is very easy to use . its all kinds of performances have achieved the goals as expected , which can satisfy the needs of gamma - ray spectrometry of field 经初步试验，本系统工作稳定可靠，操作简易方便，各项性能指标达到预期目标，能够满足地面射线能谱测量的要求。
The thesis brings forward the datasource of the aerial gamma - ray spectrometric database , and completes elementarily the design of the aerial gamma - ray spectrometric database on the base of the analysis of internal characteristic of the aerial gamma - ray spectrometry 论文在系统分析了航空伽玛能谱测量内在特点的基础上，提取了航空伽玛能谱数据库的数据源，初步完成了航空伽玛能谱数据库的设计。
Like conventional gamma - ray spectrometry measurement method , the calibration of detection efficiency in tgs is an essential important work , the accuracy of the calibrated detection efficiency directly affects the accuracy of measurement results 关于tgs探测效率刻度问题，它与常规能谱测量一样，探测效率的刻度是一项必须要做的最基本的重要工作。探测效率刻度的准确与否是直接影响测量结果准确度的关键因素。
There are 107 detection efficiency matrix elements for a 10 10 16 ( 1600 voxels ) tgs sample , for such a large matrix , it seems impossible and unrealistic to calibrate experimentally as usually done for routine gamma - ray spectrometry measurement 对于10 10 16体素组成的tgs样品，探测效率矩阵元的数量级约为10 ~ 7 。对于如此庞大的探测效率矩阵，如果象常规能谱刻度一样采用实验方法刻度，几乎是不可能的，也是不现实的。
It is important that study gamma - ray spectrometry of field rock and soil in the earth ' s crust . its energies range between 30kev and 3000kev , where there is much information of natural radioactive nuclides , such as uranium , thorium , potassium , and information of artificial radioactive nuclides , such as cesium , americium , cobalt , and information of the results in interaction between gamma - ray and earth ' s crust 研究表明：野外地面射线能谱测量主要研究地壳岩石土壤中产生的能量约为30kev 3000kev的射线，这里面包含着铀、钍、钾等天然放射性核素信息，核工程活动产生的大量人工放射性核素信息以及射线与地壳相互作用产生的相关信息。
Abstract : according to the variation in content of characteristic radioactive nuclide and the close relationship between high - grade associated elements in ore - forming components and gold , the ground gamma - ray spectrometry and x - ray fluorescence slectrometry can be used to reveal the existence of gold mineralization rapidly in field and make semi - quantitative evaluation of gold grade . this is of great significance in guiding field geological sample collection and mountain land engineering 文摘:通过测定特征放射性核素的含量变化以及利用成矿组分中一些高品位共生元素与金密切的相关关系，可利用地面伽马能谱与x荧光测量在现场快速揭示金矿化的存在，同时对金的品位进行准定量评价，以及指导野外地质采样和山地工程。
