| 混频＋m腔微波电子枪束流动力学特性 |
| |
| 引用本文： | 赵振堂,林郁正,王宏源. 混频＋m腔微波电子枪束流动力学特性[J]. 中国物理 C, 1994, 0(7) |
| |
| 作者姓名： | 赵振堂 林郁正 王宏源 |
| |
| 作者单位： | 清华大学现代应用物理系，中国科学院高能所 |
| |
| 基金项目： | 863高技术项目,国家自然科学基金 |
| |
| 摘 要： | 为了使自由电子激光器的电子束注入器具有小的能散，小的横向发射度、高的亮度，本文提出在 腔的微波电子枪中采用混频腔技术，并用解析方法研究了混频加速的 腔方案的动力学特性，所导出的表达式说明此方案能改善束流的纵向和横向粒子动力学性能；为了对比，还借助于ＰＡＲＭＥＬＡ程序对此方案进行了束流动力学模拟，结论与导出的解析表达式结果一致．
|
| 关 键 词： | 混频＋m腔微波电子枪，自由电子激光，注入器，束流动力学特性，横向发射度，能谱 |
Beam Dynamics characteristic in Cell''''s HarmonicMicrowave Cun |
| |
| Zhao Zhentang,Lin Yuzheng,Wang Hongyuan. Beam Dynamics characteristic in Cell''''s HarmonicMicrowave Cun[J]. High Energy Physics and Nuclear Physics, 1994, 0(7) |
| |
| Authors: | Zhao Zhentang Lin Yuzheng Wang Hongyuan |
| |
| Abstract: | In order to decrease the energy spread and to get a small traverse emittance as well as high brightness of the electron beam in the injector of the FEL, a cell's microwave gun scheme adopted the technique of the harmonic cavity is presented. By using K. J. Kim method, the beam dynamics characteristic in the cell'S harmonic microwave gun is studied. The derived formulas demonstrate that with this scheme, the energy spread and traverse emittance of the electron beam are improved. In comparison with above analytical results, a beam dynamics simulation is performed with PARMELA code. The result shows that the harmonic microwave gun is favourable for improving the energy spread and repressing the phase space dilution. |
| |
| Keywords: | cell's harmonic microwave gun free electron laser injector beam dynamics characteristic traverse emittance energy spread |
| 本文献已被 CNKI 等数据库收录！ |
