Multimode interaction and multiwave radiation of Cerenkov generators with overmoded slow-wave structures

被引：0
|
作者：
Koshelev, VI [1 ]
Deichuly, MP [1 ]
Petkun, AA [1 ]
机构：
[1] Russian Acad Sci, Inst High Current Elect, Tomsk 634055, Russia
来源：
INTENSE MICROWAVE PULSES VIII | 2001年 / 4371卷
关键词：
multiwave Cerenkov generator; overmoded slow-wave structure; nonlinear hybrid code; interaction of longitudinal modes; multiwave radiation;
D O I：
10.1117/12.436928
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A nonlinear time-domain hybrid code for Cerenkov generators with overmoded slow-wave structures has been developed in which the analytical representation of an axially symmetric electromagnetic field and particle-in-cell method for an electron beam was used. To present a summary electromagnetic field of the open resonator, the supplementary functions are used along with the high-Q functions corresponding to longitudinal modes. The code was used for numerical simulation of different regimes of the beam and field interaction near the pi -type oscillations of TM(01)mode in a one-sectional slow-wave structure. In the output radiation the main contribution is made by the modes TM01 and TM02. Calculation results are compared with the experimental data in the wavelength and generation efficiency.
引用
收藏
页码：166 / 176
页数：11
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