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Volume 10, Issue 1 (International Journal of Optics and Photonics (IJOP) Vol 10, No 1, Winter-Spring 2016)
IJOP 2016, 10(1): 37-46 |
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Mohsenpour T, Ehsani Amri H. Self-Fields Effects on Gain in a Helical Wiggler Free Electron Laser with Ion-Channel Guiding and Axial Magnetic Field. IJOP 2016; 10 (1) :37-46
URL: http://ijop.ir/article-1-238-en.html
URL: http://ijop.ir/article-1-238-en.html
1- University of Mazandaran
2- Islamic Azad University,Nour branch
2- Islamic Azad University,Nour branch
Abstract: (7168 Views)
In this paper, we have investigated the effects of self-fields on gain in a helical wiggler free electron laser with axial magnetic field and ion-channel guiding. The self-electric and self-magnetic fields of a relativistic electron beam passing through a helical wiggler are analyzed. The electron trajectories and the small signal gain are derived. Numerical investigation is shown that for group I orbits, gain decrement is obtained relative to the absence of the self-fields, while for group II orbit gain enhancement is obtained.
Type of Study: Research |
Subject:
General
Received: 2015/11/4 | Revised: 2016/01/31 | Accepted: 2016/03/1 | Published: 2016/04/30
Received: 2015/11/4 | Revised: 2016/01/31 | Accepted: 2016/03/1 | Published: 2016/04/30
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