This paper introduces the principles of field ion emission at first, and then explains the construction and work principles of FID.
本文先介绍场离子发射的原理,然后介绍FID的结构及工作原理。
The field ion image of tungsten with resolution of atomic level has been obtained and the surface structure of tungsten has been analysed.
取得具有原子级分辨的场离子像,并对钨场离子像反映的晶体表面结构进行了分析。
Seen here on June 13th from southern New Mexico, this Comet McNaught's long ion tail sweeps across the telescopic field of view (a negative image is inset).
这是6月13日新墨西哥南部所见,麦克·诺特的长离子尾扫过望远镜的视野,插图是负片。
The field then fell silent for more than ten years, until the Japanese company Sony optimized the idea for the first commercial lithium-ion battery in the early 1990s.
这个领域之后十多年就沉默下来,直到上世纪九十年代早期为了商业化的锂离子电池,日本索尼公司优化了这种想法。
The results show that the density distribution of ion and electron is similar to electric field distribution.
结果表明,在电离的初始阶段,电子、离子密度分布与场分布同步。
The RF method shortens the ion extraction time, and increases the ion extraction efficiency. It can also control the plasma density by changing the magnetic field.
共振法缩短了离子引出时间,提高了离子引出效率,并且可以通过对外加磁场的调节来控制等离子体密度。
Analyzing the simulation results, a visual insight into magnetic field of the ion source is gained, thus providing a theoretical guidance for improving the design of end-Hall ion source.
通过对模拟结果的分析,获得了对该离子源磁场分布的直观深入的认识,为具体的端部霍尔离子源的改进设计提供了理论指导。
Low voltage high current reactive ion plating is a new progress in the field of optical thin films deposition techniques.
光学薄膜低压大电流反应离子镀技术是近年来光学薄膜技术领域中的最新进展。
This paper is to study progress on molecule recognition of ion, macromolecule, chiral molecule and applications in some field by the use of supramolecular porphyrins.
综述了超分子卟啉化合物对离子、大分子、手性分子的识别的研究进展及其在一些领域的应用。
Experimental results were analyzed by means of built-in field enhanced ion emission model and ion neutralized models, which coincides well with the experiment results.
利用内建场增强离子发射模型和可动离子中性化模型对实验结果进行了分析与计算,理论与实验吻合较好。
A transverse field gas ionization chamber for particle identification at the Radioactive ion Beam Line in Lanzhou (RIBLL) is described.
描述了一种将用于兰州放射性束流线较重离子鉴别的多阳极横向场电离室。
Experimental results had been explained by means of built-in field enhance ion emission and ion neutralized models.
利用内建场增强离子发射模型和可动离子中性化模型对实验结果进行了讨论。
Research into damage of DNA components is an important field in mechanism study to the low energy ion beam irradiation.
DNA组分损伤研究是低能离子辐照机理研究的一个重要领域。
The acquisition of field emission negative ion and its time-of-flight Spectra (TOPS) brings up to negative ion atom probe invention.
场致发射负离子及其飞行时间谱的获得导致场致发射负离子原子探针的发明。
In this paper, the applications of fast ion conductors in power source field are reviewed.
综述了快离子导体材料在能源领域中的应用。
Because of being have many advantages for intense pulsed ion beam, it has been pay more attention in the field of materials.
强流脉冲离子束因其自身的诸多优越性,在材料领域里越来越受到重视。
Some quantitative relations are given, and experimental evidence is provided for the use of the magnetic quadrupole field in high frequency ion source.
给出了某些定量关系,为磁四极场用于高频离子源提供了实验依据。
When the external RF frequency is much bigger than ion plasma frequency, ions answer average field.
当外加射频频率远大于离子等离子体频率,离子响应平均场,离子的密度分布几乎不随时间变化;
The dielectric barrier surface discharge process is simulated using Poisson's equation and drift-diffusion equation and the distribution history of electron, ion and electric field is gained.
采用泊松方程和漂移-扩散方程对介质阻隔面放电进行数值模拟,得到了电子、离子以及电场分布随时间的变化。
However, the discovery of bioeffects induced by ion beam implantation has opened a new branch in the field of ion beam applications in the life science-low-energy Heavy ion Biology.
离子注入生物效应的发现开拓了低能离子束技术在生物学中应用的新领域,形成了一个新的交叉学科——低能重离子生物学。
Adopting paraboloid model of tip surface, presented the dynamics equation of negative ion flight in tip field and solve it with numerical method.
采用针尖的旋抛物面模型,给出了表面生成的负离子在针尖场中飞行的动力学方程,并用数值方法求解。
The effects of different nitrogen fertilizers on salt content and ion composition in greenhouse and open field soil were studied through laboratory incubation experiment.
通过室内模拟培养实验,研究了尿素、碳酸氢铵和硝酸钙对设施土壤盐分含量和离子组成的影响。
The conclusion has important guiding meaning for increasing fluid delivery in stable Product-ion field tests at the late period of high water cut stage.
这一结论,对油田高含水后期提高排液量稳产试验有着重要指导意义。
The examination of major ion geochemistry is based on the field sampling of the dissolved loads from the Changjiang River on eastern QinghaiXizang Plateau in the years of 2000 and 2002.
作者于2000年和2002年对青藏高原东部长江河流溶质载荷进行了较为系统的野外取样工作,并对主要离子地球化学特征进行了分析研究。
Water, which contains the ion, is electric when an external electric field is acted on it.
包含有离子的水溶液在外施电场作用下是导电的。
The electron and ion density distribution and the electrostatic potential change a little in an oblique magnetic field.
在倾斜磁场中,电子和离子密度分布以及静电势的变化非常小。
The high energy heavy-ion collisions open a new field in nuclear physics.
高能重离子碰撞开辟了研究多粒子体系的新领域。
We observe that the reentrant transition may occur in the present system if single - ion anisotropy parameter is not large and if transverse field is small.
如果负单离子各向异性场参数不大且横场值较小,我们观察到在目前的系统中重入相变可能发生。
The minimum magnetic field intensity needed to induce significant effect on cathodic limiting diffusion current density decreased with increasing ferric ion concentration.
引起极限扩散电流密度明显增加的临界磁场强度随三价铁离子浓度增加而减小。
In this paper, ion-exchange membrane used for EDI is studied, and flow field distribution modeling of dilute chamber with computational fluid dynamics (CFD) software is studied for the first time.
本文主要对EDI设备中的离子交换膜进行研究,并首次采用计算流体力学(CFD)软件对淡水室隔板的流场分布进行模拟。
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