THE TRANSVERSE GEOMETRIC EFFECTS IN A FREE ELECTRON LASER

Ying Runjie

Volume 10 Issue 1

Jan. 1988

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Ying Runjie. THE TRANSVERSE GEOMETRIC EFFECTS IN A FREE ELECTRON LASER[J]. Journal of Electronics & Information Technology, 1988, 10(1): 53-64.

Citation:

Ying Runjie. THE TRANSVERSE GEOMETRIC EFFECTS IN A FREE ELECTRON LASER[J]. Journal of Electronics & Information Technology, 1988, 10(1): 53-64.

Ying Runjie. THE TRANSVERSE GEOMETRIC EFFECTS IN A FREE ELECTRON LASER[J]. Journal of Electronics & Information Technology, 1988, 10(1): 53-64.

Citation:

Ying Runjie. THE TRANSVERSE GEOMETRIC EFFECTS IN A FREE ELECTRON LASER[J]. Journal of Electronics & Information Technology, 1988, 10(1): 53-64.

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THE TRANSVERSE GEOMETRIC EFFECTS IN A FREE ELECTRON LASER

Ying Runjie

Received Date: 1986-04-30
Rev Recd Date: 1987-05-11
Publish Date: 1988-01-19

Abstract

Abstract

The effects of the beam thickness and the conducting wall in a free electron laser with a linearly polarized wiggle 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 volume and surface current density are simultaneously considered. The numerical calculations indicate that the volume coupling is dominant. There is a particular value of the beam thickness and the separation between the conducting wall and the beam for which the growth rate becomes maximum.

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References

S. H. Gold, W. M. Black, H. P. Freund, V.L.Granatstein, R. H. Jackson, P. C. Efthimion, and A. K. Kinkead, Phys. Fluids, 26(1983), 2683.[2]H. S. Uhm and R. C. Davidson, ibid., 24(1981), 1541.[3]H. S. Uhm and R. C. Davidson, ibid., 24(1981), 2348.[4]H. S. Uhm and R. C. Davidson, ibid., 26(1983), 288.[5]T. Shiozawa and T. Nakashima, J. Appl. Phys., 55(1984), 637.[6]T. Shiozawa and H. Nakano, IEEE J. of QE, QE-21(1985), 931.[7]Y. Z. Yin and G. Bekefi, J. Appl. Phys., 55(1984), 33.

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