Non-stationary simulation of the gyrotron helical electron beams

A. Kuftin, V. Lygin, V. Manuilov
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Abstract

The results of non-stationary simulation of helical electron beams (HEBs) parameters based on the PIC method and quasi-stationary model of electric field are presented. The beam types with different topology (laminar, boundary, regular intersecting) are considered. The evolution of the oscillatory velocity distribution is investigated. The space charge value of locked into adiabatic trap electrons and their life-time are obtained. The bombardment of the cathode by reflected electrons is studied.
回旋管螺旋电子束的非稳态模拟
给出了基于PIC方法和准稳态电场模型的螺旋电子束参数非稳态仿真结果。考虑了不同拓扑结构的光束类型(层流、边界、规则相交)。研究了振动速度分布的演化规律。得到了锁定在绝热阱中的电子的空间电荷值及其寿命。研究了反射电子对阴极的轰击。
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