摘要
研究了具有突变结构复合腔回旋管注波互作用自洽非线性理论.用场匹配方法处理了腔中的突变结构,从具有电子流源的普遍传输线方程出发,研究了腔中注波互作用非线性理论,在腔直径渐变部分考虑了模式之间的耦合.利用此非线性理论模型,对突变结构复合腔三次谐波回旋管中电子流与H511—H521模式对的高频场互作用进行了详细数值模拟,得出了许多有价值的结果.计算结果表明,在合适的腔体结构尺寸下,注波互作用效率可大于25%.
A self\|consistent nonlinear theory of interaction between electron beam and RF field in a complex cavity gyrotron with abrupt transition is studied in this paper.A field matching technique is used to treat mode conversion at the step in cavity.Starting from general transmission line equations with an electron beam source,the nonlinear theory of interaction is investigated in which mode coupling is taken into account in diameter\|gradual\|change sections.Using the theoretical model,the electron beam interaction with H 51 ? ? 52 RF field in the third\|harmoric complex cavity gyrotron is simulated mumerically in detail.Many interest results are obtained.The results show that an electron efficiency over 25% is predicted for suitable dimensions of the complex cavity.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第2期312-317,共6页
Acta Physica Sinica
