论文标题
磁性约束下的二级电子发射：从蒙特卡洛模拟到分析溶液
Secondary electron emission under magnetic constraint: from Monte Carlo simulations to analytical solution
论文作者
论文摘要
二级电子发射过程对于广泛应用的最佳运行至关重要，包括融合反应器，高能加速器或航天器。该过程可以通过使用磁场来影响和控制。提出了一种分析溶液来描述斜磁场中的二级电子排放过程。它源自蒙特卡洛模拟。分析公式捕获了磁场幅度和倾斜，电子发射能，表面上的电子反射以及电场强度对次级发射过程的影响。最后两个参数增加了有效排放，而其他参数则相反。电场效应等于磁场倾斜的降低。在广泛参数的分析结果和数值结果之间显示了一个非常好的一致性。分析解决方案是用于磁性辅助应用理论研究和设计的便捷工具，为后续模拟提供了现实的输入。
The secondary electron emission process is essential for the optimal operation of a wide range of applications, including fusion reactors, high-energy accelerators, or spacecraft. The process can be influenced and controlled by the use of a magnetic field. An analytical solution is proposed to describe the secondary electron emission process in an oblique magnetic field. It was derived from Monte Carlo simulations. The analytical formula captures the influence of the magnetic field magnitude and tilt, electron emission energy, electron reflection on the surface, and electric field intensity on the secondary emission process. The last two parameters increase the effective emission while the others act the opposite. The electric field effect is equivalent to a reduction of the magnetic field tilt. A very good agreement is shown between the analytical and numerical results for a wide range of parameters. The analytical solution is a convenient tool for the theoretical study and design of magnetically assisted applications, providing realistic input for subsequent simulations.
