【摘要】 新一代宽带、高增益、大功率回旋行波管需要新型的电子注,而大回旋cusp电子注为其实现提供了可能。对大回旋cusp电子注进行系统理论分析,建立了大回旋cusp电子注的物理模型,在理论分析基础上进行了大量数值计算和模拟优化,并对大回旋cusp电子枪设计中的影响因素进行探讨。设计出一支低速度零散、高速度比、低纹波,适用于高次谐波的高功率(54 kV,2.7 A)cusp电子枪。更多还原

【Abstract】 Certain gyro-type devices,including moderately high power,high harmonic gyrotrons,gyro-TWT and peniotrons,require an axis encircling electron beam.To develop practical and efficient devices of this type,it is necessary to first develop a gun that generates a high quality beam with low velocity spread and ripple.This paper analyzes the large orbit gyrotron cusp electron beam,builds up the physical models of the cusp electron beam,and discusses the effect on the factor in designing the large orbit gyrotron cusp electron gun based on theoretic analysis.The cusp gun designed can generate an axis encircling beam with low-velocity spread and small beam ripple for high-harmonic high-power(52 kV,2.7 A) operation in gyrotrons.更多还原