摘要
A volume-weighting cloud-in-cell (VW-CIC) model is developed to implement the particle-in-cell (PIC) simulation in axially symmetric systems. This model gives a first-order accuracy in the cylindrical system, and it is incorporated into a PIC code. A planar diode with a finite-radius circular emitter is simulated with the code. The simulation results show that the VW-CIC model has a better accuracy and a lower noise than the conventional area-weighting cloud-in-cell (AW-CIC) model, especially on those points near the axis. The two-dimensional (2-D) space-charge-limited current density obtained from VW-CIC model is in better agreement with Lau's analytical result. This model is more suitable for 2.5-D PIC simulation of axially symmetric plasmas.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 2653-2656 |
| 页数 | 4 |
| 期刊 | Plasma Science and Technology |
| 卷 | 7 |
| 期 | 1 |
| DOI | |
| 出版状态 | 已出版 - 2月 2005 |
| 已对外发布 | 是 |