| 投影管磁聚焦系统场分布的数值计算 |
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| 引用本文： | 陈泽祥,成建波.投影管磁聚焦系统场分布的数值计算[J].电子科技大学学报(社会科学版),1998(4). |
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| 作者姓名： | 陈泽祥 成建波 |
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| 作者单位： | 电子科技大学光电子技术系 |
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| 基金项目： | 国家“八五”重点科研项目 |
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| 摘 要： | 改变了传统边界元法对边界的剖分方法，对磁聚焦组件的磁介质边界进行特殊边界元剖分，使矩阵方程数目大大减少，计算速度明显提高。在求解矩阵方程时，先用解析法化简了矩阵方程中含有瑕点的矩阵元素，从而在数值计算时无需求解瑕点，进一步提高了计算精度和速度。将此法应用于投影管电子枪设计软件中，大大提高了设计效率。
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| 关 键 词： | 边界元法 投影管 磁聚焦 瑕点 |
A Numerical Method to Magnetic Field Problems of Electromagnetic Focusing System of High Resolution Project Tube |
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| Chen Zexiang,Cheng Jianbo.A Numerical Method to Magnetic Field Problems of Electromagnetic Focusing System of High Resolution Project Tube[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1998(4). |
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| Authors: | Chen Zexiang Cheng Jianbo |
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| Abstract: | A pecular boundary element is defined in the boundary of the eletromagnetic focusing sys- tem instead of the conventional define method of BEM to boundary in this paper , which can employ less boundary elements without reducing the calculation precision . The irregular matrix elements of the matrix equation is also simplified . It takes less time to run numerical calculation than common methods. When the method is used in electron gun CAD , the period of design is shorten and the precision is improved . |
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| Keywords: | boundary element methods : project tube : electromagnetic facusing : irregularity |
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