中国物理B ›› 2013, Vol. 22 ›› Issue (6): 67803-067803.doi: 10.1088/1674-1056/22/6/067803
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
罗积润a, 崔健b, 朱敏a, 郭炜a
Luo Ji-Run (罗积润)a, Cui Jian (崔健)b, Zhu Min (朱敏)a, Guo Wei (郭炜)a
摘要: Based on space-charge wave theory, the formulae of the beam-wave coupling coefficient and the beam-loaded conductance are given for the beam-wave interaction in an N-gap Hughes-type coupled cavity chain. The ratio of the nonbeam-loaded quality factor of the coupled cavity chain to the beam quality factor is used to determine the stability of the beam-wave interaction. As an example, the stabilities of the beam-wave interaction in a three-gap Hughes-type coupled cavity chain are discussed with the formulae and the CST code for the operations of the 2π, π, and π/2 modes, respectively. The results show that stable operation of the 2π, π, and π/2 modes may all be realized in an extended-interaction klystron with the three-gap Hughes-type coupled cavity chain.
中图分类号: (Microwave and radio-frequency interactions)