Topic/Type: 1.5 Low-temperature, dusty and nano-plasmas, Oral
M. T. Murillo Acevedo , V. D. Dugar-Zhabon
Physics School, Industrial University of Santander, A.A. 678 Bucaramanga, Colombia
The plasma structure and particle behaviour which are confined in a magnetic mirror trap and heated by microwaves at electron cyclotron resonance (ECR) conditions is studied numerically by using the particle-in-cell method and taking into consideration the plasma self-generated electric and magnetic fields. These fields are calculated through simulations of the Poisson equation in a finite-difference presentation, with an application of the Fast Fourie transform technique and the Maxwell equations. The surface in which the ECR conditions are satisfied has a hyperboloid form of a one sheet type. The localizations of the electrons and ions in the trap space are found. It is shown that in the middle transversal plane of the trap a stable gyrating plasma ring, whose radius approximately coincides with the radius of the ECR hyperboloid in these plane, is formed. Some trajectories of the moderate and high energy electrons which comprise the ring are visualized. The obtained data are in agreement with the experimental ones.