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本文介绍了一种频率连续可调的等离子体辐射源。它是利用波与相对论等离子体前沿相互作用产生多普勒频移来产生辐射的。针对TE波与圆波导内低密度等离子体前沿相互作用,本文推导了所产生的辐射脉冲的上移频率、反射效率、传输效率和脉冲长度等计算公式。
This article describes a continuously adjustable frequency of plasma radiation source. It is the use of waves and relativistic plasma frontier Doppler shift to produce radiation. Aiming at the frontal interaction between TE wave and low-density plasma in circular waveguide, this paper derives the formula of up-shift frequency, reflection efficiency, transmission efficiency and pulse length of the generated radiation pulse.