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本文介绍了1MV强流脉冲电子加速器有关区域的电场计算。计算中对电极边界的处理采用了“网格跟踪法”,比J.E.Boers采用的“直接转移法”,获得了更接近实际情况的电位分布。在差分公式中引入了ξ因子,增加了网格形状选择的适应性。计算中,还增加了等位线搜索处理,提高了数据分析自动化程度。结果对Blumlin传输线全区域电位分布,及其中筒尾部形状,主开关区电极形状,各隔离用绝缘介质表面场强,以及Marx发生器中球隙电极形状作了分析与改进。
This article describes the calculation of the electric field in the relevant area of a 1MV high-current pulsed electron accelerator. The calculation of the electrode boundaries using the “grid tracking method” than the J.E. Boers adopted the “direct transfer method” to obtain a closer to the actual situation of the potential distribution. The ξ factor is introduced in the difference formula, which increases the adaptability of grid shape selection. Calculation, also increased the bit line search processing, improve the degree of automation of data analysis. Results The distribution of the entire region of the Blumlin transmission line, the shape of the tail of the cylinder, the shape of the electrode in the main switch region, the surface field strength of the insulation medium, and the shape of the gap electrodes in the Marx generator were analyzed and improved.