合理评价对作用过的电子注采用再聚焦技术效能的标准是视作用过的电子注湍流效应(turbulence)的降低程度。利用粒子注入角度的均方根偏移可以度量电子注中的湍流效应,粒子注入角度是用径向速度和轴向速度的比值来计算的。事实表明在某些磁场聚焦结构中,角度的偏移几乎可以减小一半。实验的结果指出这种电子注再聚焦处理方法最有希望获得最佳的收集极效率。 The criterion for judging the effectiveness of refocusing technology on the effects of electronic injection is the reduction in electron turbulence that has been observed. The effect of turbulence in electron injection can be measured using the root mean square (RMS) offset of the particle injection angle. The particle injection angle is calculated using the ratio of radial to axial velocity. The fact shows that in some magnetic field focusing structures, the angular offset can be reduced by almost half. The experimental results show that this electron injection refocusing method is most promising for the best collector efficiency.