在束流横向发射度的分析中，引入了发射度增长因子的概念，使得在分析线性效应引起发射度增长时的物理图像更加清晰。
To make the physics image clear in analyzing the transverse emittance growth, we introduced the conception of emittance growth factor for linear effect induced transverse emittance growth.
粒子运动方程中考虑了空间电荷效应和束流负载效应。
The space charge effect and the beam loading effect are considered in the equation of beam dynamics.
模拟和测量结果显示磁场对MIG的束流有影响，MIG的束流也与阴极温度和空间电荷效应有关系。
Simulation and measurement result indicate that magnetic field influence the beam current of MIG, and the beam current of the MIG depends on the cathode temperature and space charge effect.
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