磁聚焦问题中电子轨道的计算机模拟

COMPUTER SIMULATION OF THE ORBITS OF ELECTRONS IN MAGNITIC FOCUS

不少普通物理教材对磁聚焦都有介绍，但只提供静态图片．本文建立了电子在 匀强磁场中的轨道方程，并采用计算机动态模拟电子轨道，演示磁聚焦过程及 图象，方便教师讲解。

Many general physics textbooks introduce magnitic focus, but they only provide static figures. In this article, the orbital equation of electron in a uniform magnetic field is given, and the computer program can demonstrate the magntic focus procedures and dynamic figures. This program can help teaching and learning this phenomenon.