本文叙述了放射性同位素源激发能量色散x射线分析中基本参数法的原理、实验装置和计算机程序。
In this paper, the principle, experimental arrangement and computer program of fundamental parameters method in radioisotope source excited energy dispersive X-ray analysis are described.
介绍了在低能范围内利用放射性同位素源发出的初级射线，照射和激发靶片元素产生的特征X射线的规律性；
The law of characteristic X-rays emitted by target element under the radiation of isotope source in a range of low energy is discussed.
而放射性同位素能量源可以为探测器提供热量和电能。
A radioisotope power source will provide heat and electric power to the rover.
用热表面离子源测定了锂同位素丰度，在样品全耗尽过程中累计离子流强度。
The isotopic ratio of lithium was determined by cumulating intensity of ion current during evaporation of all samples on evaporation filament.
在土壤排水良好、氧化的地下水环境中，地下水的氮同位素组成反映了源的特征。
Nitrogen isotope compositions of groundwater reflect characteristics of contamination sources in the environment of well-drained soils and oxygenated ground waters.
溢流玄武岩的同位素体系特征表明它们的源区涉及再循环地幔的壳幔混合、岩石圈减压熔融、上—下地幔过渡带和似原始-略亏损的下地幔。
Isotopic systematics of flood basalts indicate that their sources are involved in crust-mantle mixing in a recycled mantle, decompression melting of lithosphere.
围岩和充填物的碳氧同位素地球化学揭示盐水流体不是来自于围岩自身，极可能来自于烃源岩。
The geochemical characteristics of host rocks and filling minerals reveal that the salt fluid is not from host rocks, but most likely from source rock.
运用本文多源多汇模型研究岩浆同化-分异结晶过程中微量元素和稳定同位素的行为，所得的结果与前人AFC模型结果一致。
When the model is applied to study the behaviors of trace elements and stable isotopes in the assimilated fractional crystallization process, the results are consistent with the previous AFC model.
碳同位素分馏动力学模型在不同盆地会存在差异，不仅取决于气源条件，还与聚集历史、沉积-构造史有关。
The kinetic model of carbon isotope fractionation may have difference in the different basin, which lies on gas source condition, accumulation history and sedimentary-tectonics history.
以碳、硫同位素在石油生成演化过程中的分馏作用为基础，对塔里木盆地原油、油源对比进行了探讨。
Based on the fractionation of carbon and sulfur isotopes in the process of petroleum generation and evolvement, the crude oils and their sources in the Tarim Basin have been discussed.
微量元素和同位素地球比学资料表明黄椅山玄武岩的地幔源区的同位素组成与原始地幔近似；
All of the rare element and isotope characteristics of the Huangyishan basalts are similar to that of the original mantle of the Earth.
通过初次运移模拟实验证明了烃类在不同类型烃源岩中发生初次运移能够产生不同程度的物理碳同位素分馏效应；
The result of the primary migration simulation suggests that there are different carbon isotopic fractionation effects in the primary migration of different source rocks.
丢失放射性密封源是同位素应用的最安全隐患，应重点加强监管。
The loss of radiative seal sources is the biggest security hidden trouble for application of isotope, Should be managed and inspected carefully.
微量元素和同位素特征显示，玄武岩起源于与洋岛玄武岩源区相似的富集地幔源。
According to the characteristics of trace elements and isotope, the source of the basalt is similar to the OIB source.
铅同位素示踪理论应用于城市环境污染源的研究，能够取得比较理想的结果。
And the study on application of lead isotope tracing for city environment pollution sources can get a good result.
用源汇模拟同位素分离气体离心机流场的供取料驱动和机械驱动是离心机流场计算中的方法之一。
The sources and sinks are used to simulate the mechanical drives and the drives of the feed and withdrawals in the simulation of the flow field of a gas centrifuge for isotope separation.
结果表明，可以用中子发生器代替同位素中子源实现补偿中子测井。
It is showed that compensated neutron logging can be realized by using neutron generator instead of isotopic neutron source.
本文总结了太行山地区中生代辉长岩和新生代玄武岩的元素和同位素组成，其组成显示它们的地幔源区存在着明显的差别。
A summary of elemental and isotopic compositions of the Mesozoic gabbros and Cenozoic basalts from the Taihang Mountains shows a remarkable difference in their mantle sources.
文中还通过储层中的天然气与气源岩生成天然气之碳同位素特征的分析对比，对各类天然气的展布特征进行了探讨。
The malleabilities of various types of gas are discussed in this paper according to the carbon isotope characteristics of the gas in reservoir and gas from gas source rock.
利用放射性同位素示踪技术研究荔枝果皮对外源钙和蔗糖的吸收及细胞壁构建规律。
Absorption of exogenous calcium and sucrose and their deposit onto the cell walls in litchi pericarp were studied by using radioisotope tracer technique.
利用气体碳同位素探索油气来源的传统方法由于受源岩类型、源岩成熟度等因素的影响，其实际应用受到很大的限制。
The application value of traditional method to explore the oil and gas source using carbon isotope was bounded by the type and maturity of source rock.
同位素及微量元素研究表明，成矿物质具有多源性。
Isotopic and trace elements data show that mineralizing materials are of multi-sources.
对其矿床地质特征、同位素地质学、矿床成因等方面研究，认为成矿物质来源具双重性，既有来源于地层，又有来自壳幔源岩浆。
Studies on geology, isotopes and metallogenesis indicate that the ore forming material derived from strata and magma derived from crust mantle.
在中国的主要沙漠和戈壁等粉尘源区采集了地表沙或土壤（统称为表土）样品，分析了样品的碳酸盐含量和碳酸盐的碳氧同位素组成。
Surface soil samples were collected in the deserts and Gobi regions of China. The carbonate content and carbon and oxygen isotopic composition were analyzed.
硫同位素分析结果表明硫来自地壳深部混合硫源，而铅同位素分析结果反映其来源存在多源性。
Sulfur isotopic analyses are consistent with derivation of sulfur from a mixed source in deep crust, and lead isotopic analyses support derivation of lead from multiple sources.
计算压水堆与时间相关的、大量同位素的源项及其强度。
Calculating source terms of pressure water reactor (PWR) that are time-related and of a lot of isotopes and their intensity.
烃类分子在不同类型烃源岩中的扩散度差别很大，可能是造成同位素分馏的主要原因。
Diffusion capacities of hydrocarbons in different source rocks are very different, which should be responsible for the carbon isotopic fractionation.
在碳同位素组成上具深源碳特征。
The composition of carbon isotope has the characteristics of carbon of deep seated source.
在碳同位素组成上具深源碳特征。
The composition of carbon isotope has the characteristics of carbon of deep seated source.
应用推荐