By assuming the weak lens focal length expression to be the first term in a power series a simple and accurate formula can be derived for the objective focal length of a magnetic electron lens.
用假设弱透镜焦距表达式是一个幂级数中的第一项的方法，可以导出相当准确且便于实用的电磁电子透镜物镜焦距公式。
Magnetic coils focus the electron beams into fine spots.
磁线圈将电子束聚焦成细小的点。
We have placed the nanotubes between magnetic electrodes and we have shown that the direction of a single electron spin caught on the nanotube can be controlled directly by an electric potential.
我们把碳纳米管放在磁性电极之间。然后我们发现被碳纳米管捕捉的单电子自旋方向可以被电势直接控制。
I soon saw that this new equation gave correctly the spin and the magnetic moment of the electron.
我马上发现这个新方程正确地给出了电子的自旋和磁矩。
Magnetic recording materials have been widely applied in computer and electron devices.
磁记录材料广泛用于计算机和电子设备中。
The energy spectrum and the ground state magnetization of electron are calculated and analyzed, and are compared with the situation in uniform magnetic filed.
计算和分析了电子的能谱和基态磁化强度随周期磁场的各个参数的变化，并与均匀磁场中的情况进行了比较。
The ferrite magnetic material is the key basic material of modern electron technology, and its application attracts more and more people 's interests.
铁氧体磁性材料是现代电子技术中关键基础材料，它的应用越来越受到人们的重视。
This paper discusses non-local magnetic trapping resonance effects of weakly relativistic electron on cyclotron maser in the magnetic mirrors.
讨论磁镜场中弱相对论捕获电子的非局域磁捕获共振现象对回旋激射的影响。
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。
The Lagrangian formulation is used to solve the electron trajectories in some simple magnetic cusp configurations.
利用拉格朗日公式求解了会切磁场中电子运动轨迹。
Curvilinear axis Gaussian electron optical properties and aberration characteristics of the novel electrostatic immersion magnetic lenses are studied.
研究了新型的复合静电磁浸没透镜的曲光轴高斯电子光学性质及像差特性。
The effect of coiling temperature on second-phase of inter-magnetic shielded steel was observed and analyzed by transmission electron microscope (tem) and scanning electron microscope (SEM).
采用透射电镜和扫描电镜对经不同卷曲温度卷曲的热轧内磁屏蔽钢中的第二相进行测试分析。
The results show that the magnetic field affects the electron transport parameters obviously through changing the collision rate between the electrons and neutral particles.
模拟结果表明，横向磁场通过改变电子与中性粒子的碰撞速率，对电子参数产生不同程度的影响。
In this alloy system, both itinerant electron magnetism and localized magnetic moments appear very clearly.
在这个合金系统中巡游电子磁性和局域磁矩的表现都很明显。
Use magnetic field lens again, two kinds of electron lens elaborate respectively below form and principle.
又用磁场透镜，下面分别阐述两种电子透镜的构成和原理。
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。
An electron plasma may be in thermal equilibrium state under the confinement by electric and magnetic fields.
电子等离子体在静磁场和静电场的束缚下，可以达到热平衡态。
The stability of intense electron beam via the periodic static electric and magnetic fields is discussed.
本文讨论了强流电子束通过周期性静电场和静磁场的稳定性。
Branch of science that deals with the study and application of electron devices, e. g., electron tubes, transistors, magnetic amplifiers, etc.
关于电子器件(例如电子管、晶体管、磁放大器等)的研究与应用的一门科学分支。
In this paper, the interaction between surface electron and surface optical phonon for a strong coupling polyatomic polar crystals in magnetic field is studied.
本文研究磁场中强耦合多原子极性晶体中表面电子和表面光学声子的相互作用。
In addition to this, discussion on symmetry also extends to the moving electron in any three-dimensional magnetic fields.
此外，对具有确定宇称的三维磁场中运动电子的对称性也作了讨论。
We could obtain arbitrary interaction length by means of an axially movable "kicker" magnetic field that deflected the electron beam.
我们利用偏转磁场可以获得任意的相互作用区长度。
In this paper, the kinetic power theorem is used for solving the problem of interaction between a relativistic electron beam moving in a static magnetic field and a travelling electromagnetic wave.
本文利用动功率定理求解静磁场中运动的相对论性电子束与波导中电磁行波的相互作用问题。
By the transfer matrix method, the resonant splitting for ballistic conductance of a two-dimension electron gas is studied in the presence of an inhomogeneous perpendicular magnetic field.
利用转移矩阵方法，研究了在非均匀垂直磁场作用下的二维电子气中弹道电导的共振劈裂。
The device consists of magnetic field power supply, coils, and drift chamber of electron beam.
该装置由磁场电源、场线圈及电子束漂移管等组成。
Structures and magnetic properties of the films were studied by transmission electron microscopy (TEM) and ferromagnetic resonance (FMR) respectively.
其结构和磁性分别利用透射电子显微术(TEM)和铁磁共振(FMR)来研究。
Structures and magnetic properties of the films were studied by transmission electron microscopy (TEM) and ferromagnetic resonance (FMR) respectively.
其结构和磁性分别利用透射电子显微术(TEM)和铁磁共振(FMR)来研究。
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