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本文仅对于简化模型探讨了关于奥罗管(orotron)的效率(起振问题),导出了影响效率的重要参量Z_c,给出了关于这种器件的电子注与场互作用的大信号自洽解,并举例对实际参量进行了数值计算。计算结果指出,为了保证奥罗管能在宽频范围内调谐的前提下研制实用的器件,在设计准光腔的时候,不仅应追求高的品质因数,还应使与电子注作用的光栅上的模斑尽还能伸长和展宽,对于所采用的紧贴光栅表面掠过的电子注,应尽可能提高其电流值。
In this paper, we discuss the efficiency of the orotron (starting problem) only for the simplified model and derive the important parameter Z_c that affects the efficiency, and give the large signal self-consistent about the electron injection and field interaction of this device Solution, and examples of the actual parameters of the numerical calculation. The calculation results show that, in order to ensure that the tube can be developed in practical applications under the premise of tuning in the wide frequency range, the quasi-optical cavity should be designed not only with high quality factor but also with grating with electron injection Mold spot can also be stretched and widened, for the adoption of the electronic grating brushing the surface of the electronic note, should maximize its current value.