| 带电粒子在磁化等离子体中辐射模拟研究 |
| |
| 引用本文： | 张雅鑫,贾佳,付强. 带电粒子在磁化等离子体中辐射模拟研究[J]. 电子科技大学学报(社会科学版), 2009, 0(4) |
| |
| 作者姓名： | 张雅鑫 贾佳 付强 |
| |
| 作者单位： | 电子科技大学物理电子学院;成都信息工程学院学生工作处;西南民族大学学报编辑部; |
| |
| 基金项目： | 国家自然科学基金联合资助项目(10676110) |
| |
| 摘 要： | 研究了带电粒子沿磁化等离子体中匀速运动产生辐射的机理。从理论上推导了辐射场强的解析表达式和特征值形式,并通过对特征值讨论得出了辐射条件。采用数值计算得到了磁化等离子体中Cherenkov辐射特征值分布,发现磁环等离子体回旋频率和等离子体频率对辐射场特征值有直接的影响。通过计算机模拟研究了在该介质中辐射特性及辐射规律,结果表明磁化等离子体中引导磁场强度影响辐射角、辐射强度,并观察到了尾场辐射。
|
| 关 键 词： | Cherenkov辐射 特征值 磁化等离子体 粒子模拟 |
Simulation of Cherenkov Radiation in Magnetized Plasma by a Charged Particle |
| |
| ZHANG Ya-xin,JIA Jia,,, FU Qiang. Simulation of Cherenkov Radiation in Magnetized Plasma by a Charged Particle[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2009, 0(4) |
| |
| Authors: | ZHANG Ya-xin JIA Jia FU Qiang |
| |
| Affiliation: | 1. School of Physical Electronics;University of Electronics Science and Technology of China Chengdu 610054;2. Student Work Department;Chengdu University of Information Technology Chengdu 610225;3. The Editorial Office;Southwest University for Nationalities Chengdu 610041 |
| |
| Abstract: | The theoretical study and simulation of Cherenkov radiation of a charged particle which moves uniformly in magnetized plasma are carried out. The analytical expression of radiated field, eigenvalue, and radiated conditions are obtained. Numerical calculations of the eigenvalues and contour map of radiated field are presented. It is found that the cyclotron frequency and plasma frequency affect the distribution of the eigenvalue. Then the PIC-simulation is applied to analyze the characteristics of this radia... |
| |
| Keywords: | Cherenkov radiation eigenvalues magnetized plasma PIC simulation |
| 本文献已被 CNKI 等数据库收录！ |
