The method is based on the surface charge method, in which the space charge effects have been considered. A simplification against the structure of point source has been made.

该方法以表面电荷法为基础，包括了空间电荷效应的计算，并对点源结构特点进行了简化处理。

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The method is based on the surface charge method, in which the space charge effects have been considered.

该方法以表面电荷法为基础，包括了空间电荷效应的计算，并对点源结构特点进行了简化处理。

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With the example of space charge measured by PEA, the distribution of electrical stress in sample due to space change is analyzed and calculated in detail using finite element method.

用有限元法分析、计算试样中空间电荷引起的电场畸变方便、迅速，表现直观。

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