Boersch效应实验系统聚焦透镜的优化设计  

Optimization of Focusing Lens in the Experimental System of Boersch Effect

作　　者：程彬杰[1] 王莉萍[1] 唐天同[1] 

机构地区：[1]西安交通大学光电子与物理电子工程系

出　　处：《真空电子技术》1998年第5期7-11,16,共6页Vacuum Electronics

基　　金：国家教委博士学科点专项科研基金

摘　　要：聚焦透镜是Ｂｏｅｒｓｃｈ效应实验系统的一个关键部件。我们对聚焦透镜的结构进行了优化设计。根据优化的约束，选用了带有外点罚函数的Ｐｏｗｅｌｌ法。研究了其算法构造，并编制了相应的优化软件。用此软件进行优化计算后，得到了满足Ｂｏｅｒｓｃｈ效应实验要求的聚焦透镜。此结构用于实验中，观测到了明显的Ｂｏｅｒｓｃｈ效应。证明此优化方法对Ｂｏｅｒｓｃｈ效应实验系统中的聚焦透镜设计非常有效。The focusing lens is an important element in the experimental system of Boersch effect. Optimization was utilized in the design of s structure. The combination of Powell method and penalty function was chosen according to the constraint conditions. The algorithm was studied and a program for optimization was written based on these. A satisfying structure was obtained by numerical computation using the program. The structrue was used in the exper- iment and notable Boersch effect was observed. It is proved that this optimization method is ef- fective in the design of focusing lens in the experimental system of Boersch effect.

关 键 词：优化 聚焦透镜 Boersch效应 电子束 

分 类 号：TN101[电子电信—物理电子学]