耦合雙腔回旋管的束波互作用分析
ANALYSIS OF BEAM-WAVE INTERACTION IN THE COUPLED DOUBLE-CAVITY GYROTRON
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摘要: 本文導(dǎo)出了回旋管中電子與高頻場同步互作用方程的普遍形式,考慮了導(dǎo)引中心漂移和場分布相位變化的影響,利用一個雙腔回旋管模型,通過調(diào)節(jié)場分布f(z),計算了TE021模二次諧波單模工作時的互作用效率。計算表明,對=1.5,效率可高達53％。我們還討論了雙腔結(jié)構(gòu)的特點;對單、雙腔電子群聚過程進行了比較;分析了導(dǎo)引中心漂移和場分布相位對互作用的影響。
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關(guān)鍵詞:
Abstract: Several equations of the electron-wave synchronous interaction in gyrotron oscillator are-derived, in which the effects of the guiding center drift and the phase of the RF field profile are considered. The electron efficiency is calculated for the second harmonic operation of the TE021 mode for a double-cavity gyrotron model, in which the RF field profile and operation parameters of the gyrotron are adjusted. It is shown that the efficiency of 53% can be attained for =1.5. The characteristic of the double-cavity structure is discussed. The bunching processes of the single and double cavities are compared. The effect of the guiding center drift and the Phase of the RF field profile on the electron-wave interaction in analysed. -
V. A. Flyagin et al., IEEE Trans. on MTT, MTT-25(1977), 514.[2]J. L. Hirshfield, et al., ibid., MTT-25(1977), 522.[3]K. R. Chu, Phys. Fluids, 21(1978), 2354.[4]K. E. Kreischer et al., Int. J. Infrared and Millimeter Waves, 1(1980), 195.[5]K. E. Kreischer et al., ibid., 2(1981), 175.[6]A. V. Gapanov et al., Int. J. Electronics, 51(1981), 277.[7]K. R. Chu et al., IEEE Trans. on MTT, MTT-28(1980), 318.[8]A. T. Kurayev et al., REEP, 22(1977), 152.[9]朱敏,吳鴻適,電子學(xué)報,1980年,第1期,第19頁.[10]Yu Wei et al., Int. J. Infrared and Millimeter Waves, 3(1982), 367.[11]H. Daring et al., ibid, 2(1981), 437.[12][12〕張肇儀等,北京大學(xué)學(xué)報,1983年,第3期,第44頁.[13]徐安士,徐承和,同上,1986年,第5期,第114頁.[14]K. R. Chu et al., Phys. Fluids, 21(1978), 461. -
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