| THE TRANSVERSAL GEOMETRIC EFFECTS IN A FREE ELECTRON LASER |
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| 作者姓名： | 应润杰 |
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| 作者单位： | Institute of |
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| 摘 要： | The effects of a beam thickness and a conducting wall in a free electron laser with a linearlypolarized wiggler magnetic field and an axial magnetic field are investigated within the framework of fluid-Maxwell equations.The growth rate of free electron laser instability is obtained,in which the nonlinear bulkand surface current density are simultaneously considered.The numerical calculations indicate that the bulkcoupling is dominant.There is an optimum beam thickness and separation between the conducting walls forwhich the growth rate is maximum.
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The transversal geometric effects in a free electron laser |
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| Ying Runjie.THE TRANSVERSAL GEOMETRIC EFFECTS IN A FREE ELECTRON LASER[J].Journal of Electronics,1989,6(2):117-128. |
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| Authors: | Ying Runjie |
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| Affiliation: | (1) Institute of Electronics, Academia Sinica, Beijing |
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| Abstract: | The effects of a beam thickness and a conducting wall in a free electron laser with a linearly polarized wiggler magnetic field and an axial magnetic field are investigated within the framework of fluid- Maxwell equations.The growth rate of free electron laser instability is obtained,in which the nonlinear bulk and surface current density are simultaneously considered.The numerical calculations indicate that the bulk coupling is dominant.There is an optimum beam thickness and separation between the conducting walls for which the growth rate is maximum. |
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| Keywords: | Free electron laser Transverse geometric effect Stability |
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