Elliptical sheet beams with uniform current density are generated by the new-style electron gun geometry which comprises of an elliptically cylindrical cathode and an elliptical focusing electrode. 采用这种结构可以直接产生椭圆形带状电子注,且阴极发射电流密度较为均匀。
Simulations of the single tip with coaxial focusing electrode are also carried out, and the ef-fects of various geometric and electric parameters on beam focusing are analyzed. 对带有同轴聚焦电极的单个SPINDT微尖也进行了模拟,并且分析了影响电子束聚焦的各种几何和电参数。
While this paper is also focusing on the study of reactive substances mixed Co_3O_4 electrode, electrolyte selected issues. 同时还围绕Co3O4电极,对活性物质掺杂和电解液选取等问题进行了研究。
The electrons focusing effect should be firstly taken into consideration in establishing focus electrode parameters, and the influence of the tip electric field should be also considered. 因此在实际确立聚焦极参量时,应主要从聚焦极对电子束轨迹的会聚作用方面考虑,其次再考虑聚焦极对锥尖场强的影响。