高功率微波在等离子体填充波导中的传播特性

傅文杰; 鄢扬

强激光与粒子束, 2005, 17 (12): 1852, 网络出版: 2006-04-28

高功率微波在等离子体填充波导中的传播特性

Propagation characteristics of a high-power microwave in plasma-filled waveguide

论文大纲

傅文杰鄢扬

作者单位

电子科技大学物理电子学院,高能电子学研究所,四川,成都,610054

高功率微波等离子体波导有质动力传播特性 High-power microwave Plasma waveguide Ponderomotive force Propagation characterics

摘要

在考虑有质动力情况下对高功率微波在等离子体填充波导中的传播特性进行了理论分析和数值计算,研究了高功率微波在等离子体中的传播特性和微波场强与等离子体密度分布之间的关系.结果表明高功率微波的有质动力将影响微波色散特性,使微波场强分布偏离Bessel分布,并对等离子体有排开作用,当场强足够大时可将波导中心处等离子体排空形成低密度通道.

Abstract

Considering the ponderomotive force,the high-power microwave propagation in waveguide filled with plasma is analyzed and simulated.The propagation characteristics of the high-power microwave and the relationship between the power of the microwave and the distribution of the plasma density are researched.The results show that the ponderomotive force of high-power microwave would affect the dispersion,make the distribution of microwave different from Bessel distribution,and drive the plasma to the region where the microwave field is lower.When the microwave filed is sufficiently large,the low plasma density channel would form in the axial region.

参考文献

[1] Carmel Y,Minami K,Kehs R A,et al.Demonstration of efficiency enhancement in a high-power backward-wave oscillation by plasma injection[J].Phys Rev Lett,1989,62:2389-2392.

[2] Nusinovich G S,Carmel Y,Antonsen T M,et al.Recent progress in the development of plasma filled traveling wave tubes and backward wave oscillators[J].IEEE Trans Plasma Sci,1998,26(3):628-645.

[3] Zavjalov M A,Mitin L A,Perevodchikov V I,et al.Powerful wideband amplifier based on hybrid plasma cavity slow wave structure[J].IEEE Trans Plasma Sci,1994,22(5):600-607.

[4] Goebel D M,Butler J M,Schumacher R W,et al.High power microwave source based on an unmagnetized backward wave oscillator[J].IEEE Trans Plasma Sci,1994,22(5):547-553.

[5] Liu S G,Barker R J,Zhu D J,et al.Basic theoretical formulations of plasma microwave electronics-part I:a fluid model analysis of electron beam-wave interactions[J].IEEE Trans Plasma Sci,2000,28(6):2135-2151.

[6] Liu S G,Barker R J,Yan Y,et al.Basic theoretical formulations of plasma microwave electronics-part II:kinetic theory of electron beam-wave interactions[J].IEEE Trans Plasma Sci,2000,28(6):2152-2165.

[7] Liu S G,Lee J K,Song L Q,et al.Theory of wave propagation along corrugated waveguide filled with plasma immersed in an axial magnetic field[J].IEEE Trans Plasma Sci,1996,24(3):918-923.

[8] Freeman R R,Bucksbaum P H,McIlrath T J.The ponderomotive potential of high intensity light and its role in the multiphoton ionization of atoms[J].IEEE Journal of Quantum Electronics,1988,24(7):1461-1469.

[9] Miller S M,Antonsen T M,Levush B.Ponderomotive effects in plasma-filled backward-wave oscillators[J].IEEE Trans Plasma Sci,1998,26(3):680-692.

傅文杰, 鄢扬. 高功率微波在等离子体填充波导中的传播特性[J]. 强激光与粒子束, 2005, 17(12): 1852. FU Wen-jie, YAN Yang. Propagation characteristics of a high-power microwave in plasma-filled waveguide[J]. High Power Laser and Particle Beams, 2005, 17(12): 1852.

高功率微波在等离子体填充波导中的传播特性

关于本站 Cookie 的使用提示

全站搜索

高功率微波在等离子体填充波导中的传播特性

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索