Cold-Fluid Analysis of the Space-Charge Effects in an Electromagnetically Pumped Free-Electron Laser with an Axial-Guide Magnetic Field |
| |
Authors: | San-Kui GOU |
| |
Institution: | Physics Department, Lanzhou University, Lanzhou 738000, China |
| |
Abstract: | The space-charge effects are analysed and five kinds of fluid waves are obtained in the e-beam density and the axial-current density for an electromagnetically pumped free-electron laser with an axial-guide magnetic field by using the cold-fluid theory. To enhance the gain, the guide field Bo must be in this regime: -2(ωυ + cβx0kω) < Ω < -(ωυ + cβx0kω), where Ω0 = eB0/mr0 and ωυ(kω) is the frequency (wave number) of the wiggler. |
| |
Keywords: | |
|
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
| 点击此处可从《理论物理通讯》下载免费的PDF全文 |
|