Study of the hybrid mode in the helix with a partially filled plasma column

Gong Zhonglin; Chen Guang; Zhang Jinlin; He Runya

Volume 25 Issue 10

Oct. 2003

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Gong Zhonglin, Chen Guang, Zhang Jinlin, He Runya. Study of the hybrid mode in the helix with a partially filled plasma column[J]. Journal of Electronics & Information Technology, 2003, 25(10): 1418-1424.

Citation:

Gong Zhonglin, Chen Guang, Zhang Jinlin, He Runya. Study of the hybrid mode in the helix with a partially filled plasma column[J]. Journal of Electronics & Information Technology, 2003, 25(10): 1418-1424.

Citation:

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Study of the hybrid mode in the helix with a partially filled plasma column

Received Date: 2002-05-13
Rev Recd Date: 2002-10-24
Publish Date: 2003-10-19

Abstract

Abstract

The dispersion equation of the axial symmetric hybrid mode inside the helix with a partially filled plasma column is derived, its dispersion curves are calculated, and the conditions to form that mode are illustrated. The effect of confining magnetic field on the radial profile of axial electric field is studied. In the situation that the strength of confining magnetic field has been entrusted a practical low value, the calculated radial profile shows much stronger coupling of the filed to the electron beam. In the situation without confining magnetic field, a Trivelpiece-Gould mode propagating along the surface of the plasma column presents.

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References

G.S. Nusinovich, Y. Camel, T. M. Antonsen, Jr, D. M. Goebel, J. Santoru, Recent progress in the development of plasma-filled traveling-wave tubes and backward-wave oscillators, IEEE Trans. on Plasma Sci., 1998, 26(3), 628-645.[2]S. Kobayashi, T. M. Antonsen, Jr, S. Nusinivich, Linear theory of a plasma loaded, helix type,slow wave amplifier, IEEE Trans. on Plasma Sci., 1998, 26(3), 669-679.[3]A.W. Trivelpiece, Slow Wave Propagation in Plasma Waveguides, San Francisco, San Francisco Press, 1967, 22.[4]陈光,部分填充等离子体的螺旋线电磁特性的理论与实验研究,北京,[硕士论文],北京大学,2001[5]R.E. Collin, Foundations for Microwave Engineering, New York, McGraw-Hill, 1966, 393.[6]A.W. Trivelpiece, R. W. Gould, Space charge waves in cylindrical plasma columns, JAP, 1959,30(11), 1784-1794.

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