磁化等离子体填充螺旋线的色散方程  

Dispersion equation of a helical slow wave structurefilled with magnetized plasma

作　　者：谢鸿全[1] 刘濮鲲[2] 

机构地区：[1]西南科技大学理学院,绵阳621010 [2]中国科学院电子学研究所,北京100080

出　　处：《物理学报》2006年第5期2397-2402,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10347009);四川省教育厅自然科学基金(批准号:2003B019)资助的课题~~

摘　　要：利用等离子体流体理论和纵向场分量法,结合螺旋线的导电面模型,对在有限磁场作用下,填充等离子体的螺旋线进行了严格的场分析.在给出各区域电磁场分量表达式的基础上,利用螺旋线的边界条件,导出了磁化等离子体填充螺旋线中电磁波传播所满足的色散方程,并对所导出的色散方程进行了讨论.Analytical theory of electromagnetic field in a helical slow wave structure filled with plasma immersed in a finite axial magnetic field is presented in this paper. By means of helix sheath model and the boundary conditions, the dispersion equation of a magnetized plasma loaded helical slow wave structure is derived. Three particular cases （without plasma, without axial magnetic field and in infinite axial magnetic field） are discussed and the corresponding dispersion equations are deduced. It is found that the simplified results are in accord and with published references.

关 键 词：有限磁场 等离子体 螺旋线 色散方程 

分 类 号：O532.11[理学—等离子体物理]