离子通道的形成机理与动态特性分析  

Analyze on the Dynamic Characteristics and Forming Mechanism of Ion Channel

作　　者：谢鸿全[1] 景义林[2] 

机构地区：[1]西南科技大学理学院,四川绵阳621010 [2]安阳师范学院物理系,河南安阳455000

出　　处：《河南师范大学学报（自然科学版）》2006年第3期55-57,共3页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家自然科学基金(10347009);四川省教育厅自然科学基金(2003B019)

摘　　要：研究了离子通道的产生背景及物理机制,利用电磁场理论导出了离子通道的聚束条件和通道半径所满足的方程,并对各区域的相对介电常数作了分析.同时,针对离子通道的动态特性,对所导出的电子振荡运动方程作了定性的讨论.A relativistic electron beam transmitting in a cold and uniform plasma column is studied. The research background and the physical regime of ion channel is presented. By means of the electromagnetic field theory, the condition of the electron beam focusing and the equation of the ion channel radius are derived. The relative dielectric constants in each region are analyzed. In addition, the ion channel in motion is analyzed and the equation of motion to an oscillatory electron is derived. Some discussions are given on the basis of the equation.

关 键 词：离子通道 聚束条件 通道半径 相对介电常数 

分 类 号：TN128[电子电信—物理电子学]