Motion of a Charged Parand Plasma Equilibrium in a Dipole Magnetic Field – Can a Magnetic Field Trap a Charged Particle? Can a Magnetic Field Having Bad Curvature Trap a Plasma Stably?
Motion of a Charged Parand Plasma Equilibrium in a Dipole Magnetic Field – Can a Magnetic Field Trap a Charged Particle? Can a Magnetic Field Having Bad Curvature Trap a Plasma Stably?
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带电粒子等离子体平衡在偶极磁场中的运动——磁场可以捕获带电粒子吗？曲率不好的磁场可以稳定捕获等离子体吗？
DOI：
10.1238/physica.topical.116a00072
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发表时间：
2005
期刊：
影响因子：
2.9
通讯作者：
A. Hasegawa
中科院分区：
文献类型：
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作者：
A. Hasegawa
由于没有磁单极子，偶极磁场是磁场的最基本形式。通过仔细研究单个带电粒子的运动和由此产生的等离子体平衡，人们可以洞察磁场中粒子运动和平衡的基本行为。带电粒子的确切运动是什么？指导中心的动议将是什么？运动方程可积吗？如果不是会发生什么？在到处都有坏曲率的磁场中的等离子体平衡是稳定的吗？本文将使用哈密顿动力学来讨论这些基本问题。
Since there is no magnetic monopole, the dipole magnetic field is the most elementary form of magnetic field. By studying carefully the motion of a single charged particle and the plasma equilibrium that results, one can obtain insight in the basic behavior of particle motion and equilibrium in a magnetic field. What will be the exact motion of a charged particle? What will be the guiding center motion? Are the equations of motion integrable? What happens if not? Is the plasma equilibrium in a magnetic field having bad curvature everywhere stable? This paper will cover these elementary questions using Hamiltonian dynamics.