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。
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。
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。
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。
According to the special measurement requirements of the magnetic field distribution of radar electromagnetic focusing system, a automatic measurement system based on vision localization is developed.
针对雷达电磁聚焦系统磁场分布的特殊检测要求，开发了一套基于视觉定位的磁场分布自动检测系统。
Focusing magnetic fields on the visual cortex of the brain caused the subjects to see luminous discs and lines.
当把磁场聚焦在大脑的的视觉皮质上时，会促使受试者看见明亮的圆盘和线条。
Deep research on how to improve the efficiency and output power and to reduce the focusing magnetic of RBWO.
对如何提高RBWO输出功率和效率、降低聚焦磁场的方法作了较为深入的探讨。
Care must be taken to protect the focusing coils from stray magnetic fields.
必须小心，以防止聚焦线圈产生寄生磁场。
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。
Using simple math deduction results in the focusing conditions of charge-particle flow in the distribution of magnetic fields.
运用较简明的数学推导，给出了在该磁场分布下带电粒子流聚焦的条件。
We discussed the stability of both radial movement and axis movement of charged particle in infirm focusing magnetic field and obtained the term of stability.
我们探讨了弱聚焦磁场中带电粒子轴向和径向运动的稳定性问题，得到稳定性条件。
The result shows that under the constant current exciting mode, the exciting magnetic field is the strongest and has a focusing effect, which improves the eddy detection sensitivity considerably.
结果表明，在恒流激励方式下的激励磁场最强，且具有聚焦效果，因而可有效地提高涡流探伤的灵敏度。
The calculating formulas in the paper are available and convenient for computer aided design of focusing magnetic field of camera tube.
文中计算公式对于计算机辅助设计摄像管聚焦磁场是适用和方便的。
The significance of using a harmonic magnetic field in SFC (Sector Focusing Cyclotron) and the requirements for the harmonic power supplies are described roughly.
简要描述了扇聚焦回旋加速器（SFC）中使用谐波场的意义和对谐波电源的要求。
Comparison of the focusing results of a hot atomic beam with a monochromatic cold atomic beam shows that the main factor affecting the imaging quality of the magnetic lens is chromatic aberration.
在比较了热原子束和单色冷原子束的会聚效果后得出结论：影响它成像的主要因素是色差。
Comparison of the focusing results of a hot atomic beam with a monochromatic cold atomic beam shows that the main factor affecting the imaging quality of the magnetic lens is chromatic aberration.
在比较了热原子束和单色冷原子束的会聚效果后得出结论：影响它成像的主要因素是色差。
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