引出束流大小与源的工作参数、引出结构和电压以及阴极材料有关。
The extracted beam current depends on operating parameter of source, extraction voltage and cathode material.
采用数码相机直接照相的方法来确定真空弧离子源引出束流在加速空间的分布。
Spatial beam distribution of vacuum arc ion source in accelerating area was (determined) using a digital camera.
结果展示出引出束光学主要取决于引出导流系数和电势分布，在一定条件下可获得发散度小的离子束。
The results show that beam divergence of the system depends mainly on the extraction perveance and voltage ratio, and a minimum beam divergence can be obtained under optimum conditions.
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