Complex Helmholtz Coils for Producing Uniform Magnetic Fields

查看全文 作　　者：Feng Wentian, Ma Xinwen, Liu Huiping, Chen Lanfang, Li Bin and Cao Shiping 出　　处：《近代物理研究所和兰州重离子加速器实验室年报:英文版》索引2005年第1期,共1页 基　　金：Supported by the National Natural Science Foundation of China 摘　　要：In imaging experiments in ion-atom collisions, due to its small mass, the electron is easy to escape from the extraction electrostatic field, and this makes the complete collection difficult. In order to improve the solid angle for imaging of electrons, a uniform magnetic field is needed to restrict the electron trajectories .Usually, a pair of same coils, called Helmholtz coils, is employed to produce magnetic field. In 关 键 词：亥姆霍兹线圈 均匀磁场 生产 离子原子碰撞 电子轨道 成像实验 静电场 立体角