强激光与粒子束, 2012, 24 (9): 2141, 网络出版: 2012-09-12   

0.6 THz三次谐波大回旋电子枪设计

Design cusp electron gun for of 0.6 THz 3rd-harmonic large orbit gyrotron
作者单位
电子科技大学 物理电子学院 太赫兹科学技术研究中心, 成都 610054
摘要
基于会切磁场的理论模型,采用粒子模拟软件对0.6 THz三次谐波的太赫兹回旋管所需的大回旋电子光学系统进行研究。通过大量的模拟计算,分析讨论了不同参数对电子注的横向速度离散、纵向速度离散及横纵速度比的影响,优化了电子光学系统的性能参量,得到符合设计要求且具有工程实际应用的电子枪,该电子枪能够产生55 kV,1 A,横向速度离散为3.39%、纵向速度离散为7.10%、横纵速度比为1.53的大回旋电子注。
Abstract
Large orbit axis-encircling electron beams can provide improved coupling and mode selectivity in a high harmonic terahertz gyrotron. For developing a 0.6 THz 3rd-harmonic large orbit gyrotron, a cusp gun with a beam voltage of 55 kV and a beam current of 1 A has been designed based on a comparatively simple Pierce-type electron gun and cusp magnetic field. The optimized result shows that the velocity ratio, axial velocity spread and transverse velocity spread are 1.53, 7.10% and 3.39%, respectively.
参考文献

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马春燕, 胡强, 袁学松, 韩煜, 鄢扬. 0.6 THz三次谐波大回旋电子枪设计[J]. 强激光与粒子束, 2012, 24(9): 2141. Ma Chunyan, Hu Qiang, Yuan Xuesong, Han Yu, Yan Yang. Design cusp electron gun for of 0.6 THz 3rd-harmonic large orbit gyrotron[J]. High Power Laser and Particle Beams, 2012, 24(9): 2141.

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