The effects of self-fields on the electron trajectory in a two-stream free electron laser with a helical wiggler and an axial guiding magnetic field

doi:10.1088/1674-1056/21/10/104104

中国物理B ›› 2012, Vol. 21 ›› Issue (10): 104104-104104.doi: 10.1088/1674-1056/21/10/104104

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

The effects of self-fields on the electron trajectory in a two-stream free electron laser with a helical wiggler and an axial guiding magnetic field

S. Saviz^a, E. Lashani^a, Farzin M. Aghamir^b

a Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, P.O. Box 14665-678, Iran;
b Department of Physics, University of Tehran, N. Kargar Ave, Tehran 14399, Iran

收稿日期:2012-02-06 修回日期:2012-03-01 出版日期:2012-09-01 发布日期:2012-09-01
基金资助:
Project supported by the Plasma Physics Research Center, Science and Research Branch, Islamic Azad University.

The effects of self-fields on the electron trajectory in a two-stream free electron laser with a helical wiggler and an axial guiding magnetic field

S. Saviz^a, E. Lashani^a, Farzin M. Aghamir^b

a Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, P.O. Box 14665-678, Iran;
b Department of Physics, University of Tehran, N. Kargar Ave, Tehran 14399, Iran

Received:2012-02-06 Revised:2012-03-01 Online:2012-09-01 Published:2012-09-01
Contact: S. Saviz E-mail:shahrooz.saviz@srbiau.ac.ir
Supported by:
Project supported by the Plasma Physics Research Center, Science and Research Branch, Islamic Azad University.

摘要/Abstract

摘要： A theory for the two-stream free-electron laser (TSFEL) with a helical wiggler and an axial guide magnetic field is developed. In the analysis, the effects of self-fields are taken into account. An analysis of the two-stream steady-state electron trajectories is given by solving the equation of motion. Numerical calculations show that there are seven groups of orbits in the presence of self-fields instead of two groups reported in the absence of self-fields. The stability of the trajectories is studied numerically.

关键词: two-stream free electron laser, electron trajectory

Abstract: A theory for the two-stream free-electron laser (TSFEL) with a helical wiggler and an axial guide magnetic field is developed. In the analysis, the effects of self-fields are taken into account. An analysis of the two-stream steady-state electron trajectories is given by solving the equation of motion. Numerical calculations show that there are seven groups of orbits in the presence of self-fields instead of two groups reported in the absence of self-fields. The stability of the trajectories is studied numerically.

Key words: two-stream free electron laser, electron trajectory

中图分类号: (Free-electron lasers)

41.60.Cr

S. Saviz, E. Lashani, Farzin M. Aghamir. The effects of self-fields on the electron trajectory in a two-stream free electron laser with a helical wiggler and an axial guiding magnetic field[J]. 中国物理B, 2012, 21(10): 104104-104104.

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The effects of self-fields on the electron trajectory in a two-stream free electron laser with a helical wiggler and an axial guiding magnetic field

The effects of self-fields on the electron trajectory in a two-stream free electron laser with a helical wiggler and an axial guiding magnetic field

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