Magnetic focusing

Analysis of error in measurement of e / m by magnetic focusing method

利用磁聚焦法测量电子比荷的误差分析

Magnetic focusing on access has a major impact on corrosion .

磁聚焦对通道腐蚀具有重要影响。

A Study of Electrostatic and Magnetic Focusing Image Transference System without Image Rotation

图象无旋转的电磁聚焦移象系统的研究

On the Theory of Combined Electrostatic and Magnetic Focusing System For Image Transference

电磁聚焦移象系统理论的研究

The figure and Precision Analyzing of magnetic focusing

磁聚焦的图象和精度分析

Periodic Permanent ( PPM ) Magnetic Focusing System ;

周期永磁聚焦系统；

This paper discusses the bifilar splitting phenomenon of magnetic focusing spiral curve .

文中对磁聚焦螺线的双线分裂现象进行了讨论。

Magnetic Focusing Electron Gun Used in Projection CRT

投影CRT用磁聚焦电子枪

Optimization of the magnetic focusing system can decrease the radial magnetic induction and improve the electron beam quality .

通过对磁聚焦系统进行优化设计，外层电子注轨迹得到明显改善。

A method of the design of electron beams from partially shielded cathode with uniform magnetic focusing field

均匀磁场聚焦部分屏蔽流电子注的一种设计方法

A design of the transition region about partially shielded cathode with uniform and periodic magnetic focusing field

均匀磁聚焦和周期磁聚焦部分屏蔽流过渡区的设计

Simulation of Backward-Wave Oscillation in Helix Traveling Wave Tube under Permanent Periodic Magnetic Focusing

周期永磁场作用下的螺旋线行波管非线性返波振荡分析

Determining the helix starting point of determination of magnetic focusing electron charge-mass ratio electron-beam experiment

磁聚焦法测定电子荷质比实验电子束螺旋线起点的确定

There exists on optimal value of magnetic focusing field and beam voltage , which can minimize the ion noise amplitude .

束电流与束电压确定，存在最佳的磁场使离子噪声幅度最小。

In this paper , the aberration theory for cathode lenses with combined electrostatic and magnetic focusing is discussed in detail .

本文运用变分原理研究了电磁复合聚焦阴极透镜的象差理论，导出了在任意象平面中象差系数的普遍公式。

In this paper , the authors explore the problem of magnetic focusing of charged-particle flow in some specific distribution of magnetic fields .

本文探讨了在某种特定磁场分布下带电粒子流的磁聚焦问题。

Relationship Between Length of Line-Segments on Phosphor Screen and Exciting Current in Measuring Electronic Specific charge with the Method of Magnetic Focusing

关于磁聚焦法测定电子荷质比实验中荧光屏上显示的线段与所加励磁电流的关系

There is dependence between e / m error and accelerating voltage or focus voltage in the measurement of e / m by magnetic focusing method .

在利用磁聚焦法测量电子比荷的实验中，测量误差与示波管的加速电压和聚焦电压存在较大的相关性。

The principle of magnetic focusing , while the charge - mass ratio of electron was surveyed by using the experimental device of electron beam , is introduced .

介绍了利用电子束实验仪进行电子荷质比的测定的磁聚焦实验原理，并对测量结果进行了不确定度评定。

This paper describes a method of the design of the transition region of the electron beams from partially shielded cathode . This method is applicable to magnetic focusing structures of the axisymmetric high-density electron beam .

本文叙述了适用于轴对称强流电子光学系统各种磁结构的部分屏蔽流过渡区的设计方法。

The three and two dimension figures of electron helix orbits in magnetic focusing are drawn with matlab program and the factors deciding the precision of magnetic focusing are also discussed , which may be helpful to experiment .

用matlab程序描绘出磁聚焦电子螺旋轨道的三维和二维图象，分析了决定磁聚焦精度的几个因素，对实验有一定的参考价值。

Permanent magnetic field focusing has proved to be a useful method of focusing in present-day microwave tube , and is one of the important compose of electronic optics of the microwave tube .

永磁聚焦是现代微波管使用频率最高的一种聚焦方式，也是微波管电子光学的重要组成部分之一。

Mass Spectrometry Instruments Ltd ( MSI ) specializes in high performance magnetic sector double focusing mass spectrometer Instruments .

质谱分析仪器有限公司（微星）专门从事高性能磁业双聚焦质谱仪仪器。

The paper introduces a kind of design of axial magnetic field of focusing coil based on the solutions of simultaneous equations of particle dynamics in an electron linac .

介绍了在电子直线加速器粒子动力学基础上进行聚焦线圈轴向磁场的设计；

This paper deals with the real-time automatic measurement of magnetic field distribution for magnetic deflecting / focusing coils of electronic microscope , electron-beam lithographic equipment , color picture tube , and other vacuum electronic apparatus or devices .

本文论述了电子显微镜、电子束曝光机、彩色显象管等真空电子设备或器件的磁偏转、磁聚焦线圈的磁场分布参数的实时自动测量，论述了自动测量的硬件系统和软件系统。

The permanent magnetic field over ( 1.8 ? T ) is designed by using the magnetic focusing technique . Several permanent magnetic fields are designed for the reciprocating and rotating magnetic refrigerators at room temperature .

采用聚磁技术设计了磁制冷用的大于1.8T的永磁磁场，并根据往复式和旋转式磁制冷机的特点，设计了室温磁制冷机用的几种永磁磁场。

It is shown that the phenomenon is due to self-induced action in alternative magnetic field of electric solenoid and is of no effect to the point of magnetic focusing .

结果表明，此现象产生于螺线管交变磁场中的自感应作用，对于碰聚焦点不产生影响。

Some idea about the problem of coincidence of electron trajectory in electron gun with magnetic flux line for the electron optics system using partially shielded cathode with periodic magnetic focusing field is presented .

并对用部分屏蔽流周期磁聚焦的电子光学系统，电子枪区中的电子轨迹与磁力线重合的问题提出一些看法。