Research on geometry parameters of relativistic travelling wave tube slow wave structure
Author(s): XIE Hong-quan, YAN Yang, LIU Sheng-gang
Pages: 345-348
Year: 2001 Issue: 3
Journal: HIGH POWER LASER AND PARTICLE BEAMS
Keyword: 相对论行波管; 离子通道; 色散方程; 慢波结构; 几何参数;
Abstract: A relativistic electron beam is injected into a plasma whose density is lower than the beam's density. The head of the electron beam pushes out the plasma electrons, leaving an ion channel. The ion focusing force is similar to the magnetic field in binding electrons. The dispersion equation of corrugated waveguide filled with plasma is derived. It is analyzed by numerical computation that the performance of traveling wave tube (RTWT) amplifier is affected by geometry parameters of slow-wave structure, such as periods, depth of ripple and average radius of waveguide. The results are helpful for designing RTWT.
Pages: 345-348
Year: 2001 Issue: 3
Journal: HIGH POWER LASER AND PARTICLE BEAMS
Keyword: 相对论行波管; 离子通道; 色散方程; 慢波结构; 几何参数;
Abstract: A relativistic electron beam is injected into a plasma whose density is lower than the beam's density. The head of the electron beam pushes out the plasma electrons, leaving an ion channel. The ion focusing force is similar to the magnetic field in binding electrons. The dispersion equation of corrugated waveguide filled with plasma is derived. It is analyzed by numerical computation that the performance of traveling wave tube (RTWT) amplifier is affected by geometry parameters of slow-wave structure, such as periods, depth of ripple and average radius of waveguide. The results are helpful for designing RTWT.
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