摘要
本文从带电粒子在磁镜场中的受力情况入手,求出了带电粒子速度随时间的演化方式,并直接由粒子的洛伦兹方程出发,阐明了磁镜效应,此方法不需要论证粒子的磁矩守恒,从而更简单明了地阐明了磁镜效应.
In this paper, we have derived the evolution of the velocity of a charged particle in magnetic field from the Lorentz force on the particle. And from the Lorentz equation, the magnetic mirror effect can be demonstrated easily without proving the conservation of magne-tic moment.
出处
《物理与工程》
2010年第3期17-18,36,共3页
Physics and Engineering
关键词
磁镜效应
磁矩守恒
洛伦兹力
magnetic mirror effect
magnetic momentum conservation
Lorentz force
