论文标题
基于LAFE的二极管中的半分析理论
Semi-analytical theory of emission and transport in a LAFE-based diode
论文作者
论文摘要
大面积发射极（LAFE）通常由数千种纳米级发射技巧组成。这些很难使用基于有限/边界元素或有限差异方法的纯数值方法来模拟。我们在这里表明，半分析获得的静电场允许仅使用LAFE几何形状的知识来准确地跟踪LAFE的磁场发射电子。使用单个和9个Emitter配置，将使用此方法计算的光束参数与使用Comsol生成的字段进行跟踪的结果进行了比较。发现净发射电流，能量保存和横向痕量散发性以合理的精度复制。
A large area field emitter (LAFE) typically consists of several thousands of nanoscale emitting tips. These are difficult to simulate using purely numerical methods based on finite/boundary element or finite difference methods. We show here that a semi-analytically obtained electrostatic field allows tracking of field emitted electrons of a LAFE fairly accurately using the knowledge of only the LAFE geometry. Using a single and a 9-emitter configuration, the beam parameters calculated using this method are compared with the results of tracking using fields generated by COMSOL. The net emission current, energy conservation and the transverse trace-emittance are found to be reproduced with reasonable accuracy.
