The energy distribution formula of secondary electron of MCP is derived.
给出了MCP中次级电子能量分布表达式。
In the process of field emission, the secondary electron emission is inevitable.
场致发射过程中,二次电子发射现象不可忽视。
The secondary electron emission from the dielectric layer makes the discharge current increase.
绝缘介质层的二次电子发射,使放电电流增大。
There is a gaseous secondary electron detector (GSED) in the chamber in ESEM' which offers new functions.
ESEM是在传统的SEM样品室中多一个GSED探头,因此,它在传统的SEM基础上增添了新的功能。
The second is using a secondary electron detector that could function in this non vacuum sample environment.
二是使用了一个在样品室非真空环境下仍然能起作用的二次电子探头。
The qualification of multipactor and the characteristic of the angle and velocity of secondary electron were study.
研究了次级电子倍增条件以及次级电子出射角度和出射速度概率密度分布的特点。
Simulation calculation indicates that secondary electron can be controlled well by electrostatic field combined with Faraday cylinder.
模拟计算表明,在法拉第圆筒的基础上加上电场抑制,能很好地抑制二次电子流的产生。
These photoelectrons are multiplied by secondary electron emission through the dynodes and then collected by the anode as an output pulse.
这些光电子通过倍增器电极时由于次级电子发射而倍增,然后被阳极收集成为一个输出脉冲。
In this paper the sample preparation techniques of radiolarite were discussed in order to get high quality secondary electron images in SEM.
讨论了为获得放射虫化石的高质量的二次电子图像所采用的试样制备方法。
A two electron gun method and an arrangement whereby the secondary electron emission yield of dielectric materials can be measured are introduced.
本文介绍测量绝缘介质二次电子发射系数的双枪方法,并在动态系统中进行测量。
Based on the imaging principle of SEM, the equation for illustrating the theoretical resolution of secondary electron image has been deduced in this paper.
本文是从扫描电子显微镜的成像原理出发,推导了有关阐明二次电子像理论分辨率的公式。
Apparatus is described for maintaining neutralization based upon a reduction of electron losses, plasma bridge connections and secondary electron production.
描述了用于基于减少电子丢失、等离子体桥接和二次电子产生的来保持中和状态的设备。
The paper reports the fabrication of the MCP based on the porous glass (ceramics) and the measurement of secondary electron emission characteristic of the MCP.
本文报告了以多孔玻璃为基材的微通道板的制备及其二次电子发射特性的测量结果。
There are two kinds of theory for the vacuum surface flashover: secondary electron emission avalanche (SEEA) and electron triggered polarization relaxation (ETPR).
研究真空表面闪络过程有两类理论:二次电子发射崩溃(SEEA)和电子引发极化松弛(ETPR)。
The relation between target signal current and deflecting rate of the secondary electron conduction target vidicon(SECTV)which has accumulating effect is presented.
给出了具有积累特性的SEC摄像管靶极信号电流与读出扫描速率的关系。
Techniques to be discussed are wavelength and energy dispersive spectrometry, scanning backscattered electron, secondary electron, cathodoluminescence, and X-ray imaging.
将要讨论的技术包括:波长和能量色散谱,扫描背散射电子,二次电子,阴极射线磷光和X射线成像。
To measure secondary electron emission characteristics of space materials, space research institutions have done some research and developed several generations of test system.
为了测量空间材料二次电子发射特性,航天科研机构已进行了相关的研究,研制出了几代测试装置。
This paper derived the formulation for the real efficient emission coefficient of secondary electron under the condition that high energy primary electron incident on metal obliquely.
推导出高能原电子斜入射时的金属的有效真二次电子发射系数的表达式,它与入射角的余弦近似成反比。
The multi-stage vacuum system and gaseous secondary electron detector(GSED) for environmental scanning electron microscope(ESEM) were simply introduced and the basic principle of ESEM was discussed.
本文简单介绍了构成环境扫描电镜(ESEM)的多级真空系统和气体二次电子探测器,描述了ESEM的基本工作原理。
An electrode used in certain electron tubes to provide secondary emission.
中间极,二次发射电极一种用于一定电子管作第二次发射电极。
Fracture surfaces and secondary cracks morphologies were observed using scanning electron microscopy (SEM).
用扫描电镜对断口及二次裂纹形貌进行观察。
The effect of grain boundary structure on secondary working embrittlement (SWE) of IF steels was studied by electron back-scatter diffraction (EBSD) and TEM.
采用电子背散射衍射(EBSD)技术和 TEM技术对IF钢二次加工脆性与晶界结构之间的关系进行了研究。
At the stage of secondary spermatocyte, electron densed proacrosomal granules were found in the cell.
在次级精母细胞时期,胞质内出现致密的前顶体颗粒;
According to Electron probe analysis, the secondary color is formed because of the iron compounds in the cranny and clearance of jadeite.
翡翠的颜色多种多样,按照其颜色成因可以分为原生色和次生色。
According to Electron probe analysis, the secondary color is formed because of the iron compounds in the cranny and clearance of jadeite.
翡翠的颜色多种多样,按照其颜色成因可以分为原生色和次生色。
应用推荐