14 December 1992 Phase orbits of equilibrium electrons in a free-electron laser with a reversed axial guide magnetic field
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Proceedings Volume 1929, 17th International Conference on Infrared and Millimeter Waves; 19290Y (1992) https://doi.org/10.1117/12.2298151
Event: 17th International Conference on Infrared and Millimeter Waves, 1992, Pasadena, CA, United States
Abstract
The effects of self-fields of the non-neutral electron beam on the phase orbits of a equilibrium electron in a free-electron laser with a reversed axial guide magnetic field -13;. is investigated. Pioncare surface-of-section maps are generated by numerically integrating the equations of motion ,and the comparision with the case in a conventional axial guide magnetic field Nei is also given. The results show that the phase orbits of equilibrium electrons in a reversed field -130-e. remain regular when the phase space of electron in a conventional field becomes fully chaoticiconsequently,the former may have better beam quality than the latter. This fact may partly explain the experimental observation that the free-electron laser with a reversed guide field had higher efficiency than the conventional FELL'].
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S.C. Zhang, S.C. Zhang, } "Phase orbits of equilibrium electrons in a free-electron laser with a reversed axial guide magnetic field", Proc. SPIE 1929, 17th International Conference on Infrared and Millimeter Waves, 19290Y (14 December 1992); doi: 10.1117/12.2298151; https://doi.org/10.1117/12.2298151
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