Normal modes propagation in a helical free-electron laser with an axial guide field
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedade Brasileira de Física
2001
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| author | Riadh El-Bahi |
| author_facet | Riadh El-Bahi |
| contents | Normal modes propagation in a helical free-electron laser with an axial guide field Riadh El-Bahi Mohamed Nazih Rhimi Abdel Wahab Cheikhrouhou Física, Astronomía y Matemáticas Following up the detailed three-dimensional analysis of the particle dynamics in a free electron laser with a helical wiggler and a uniform axial guide magnetic field, achieved by Rhimi et al. [1], we study the motion of the electrons in the neighborhood of the ideal trajectory. The normal modes ^h + of the quadratic Hamiltonian are analyzed numerically in both the normal and reversed-field configurations for diferent values of the ratio ^ Ow=^O0. The electron trajectories are thus discussed. It is found that pseudo-circular and elliptic trajectories are characterizing both group-I and reversed-field group-II modes while the motion in the normal group-II mode is much more complicated 2001 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413502020 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3 Vol.31 |
| format | Artículo científico |
| id | redalyc_46413502020 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Normal modes propagation in a helical free-electron laser with an axial guide field Riadh El-Bahi Física, Astronomía y Matemáticas Normal modes propagation in a helical free-electron laser with an axial guide field Riadh El-Bahi Mohamed Nazih Rhimi Abdel Wahab Cheikhrouhou Física, Astronomía y Matemáticas Following up the detailed three-dimensional analysis of the particle dynamics in a free electron laser with a helical wiggler and a uniform axial guide magnetic field, achieved by Rhimi et al. [1], we study the motion of the electrons in the neighborhood of the ideal trajectory. The normal modes ^h + of the quadratic Hamiltonian are analyzed numerically in both the normal and reversed-field configurations for diferent values of the ratio ^ Ow=^O0. The electron trajectories are thus discussed. It is found that pseudo-circular and elliptic trajectories are characterizing both group-I and reversed-field group-II modes while the motion in the normal group-II mode is much more complicated 2001 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413502020 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3 Vol.31 |
| title | Normal modes propagation in a helical free-electron laser with an axial guide field |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46413502020 |