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基于超辐射机理产生X波段高功率亚纳秒脉冲研究 被引量:1

Study of X-Band High-Power Sub-nanosecond Pulse Generation Based on Superradiance Mechanism
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摘要 设计了一种基于超辐射机理的X波段相对论返波管结构,利用全电磁2.5维粒子模拟程序对返波管中的超辐射机理进行了粒子模拟研究.模拟表明:在束压430kV、束流4kA,脉宽3.1ns的电子束驱动下,实现了峰值功率1.5GW、频率10GHz、脉宽500ps的亚纳秒微波脉冲输出,峰值功率转换效率达到87.2%;在超辐射机理作用下,微波峰值功率与电子束脉宽在一定的范围内成平方关系. A novel backward wave oscillator based on the superradiance mechanism is designed in this paper. The superradiance mechanism in the relativistic backward oscillator was studied by the 2.5 dimensional particle simulation code KARAT. The simulation indicated that with the driving electron beam of voltage 430kV, current 4kA and pulse width 3. Ins, the device could generate sub-nanosecond microwave with peak power 1.5GW, operating frequency 10GHz, and pulse width 500ps. The peak power conversion ratio reached 87.2%. Under the superradiance mechanism, the peak power is proportional to the square of beam pulse width when the latter is less than 3.5 ns.
出处 《高能物理与核物理》 EI CSCD 北大核心 2006年第11期1096-1099,共4页 High Energy Physics and Nuclear Physics
基金 国家863计划项目资助~~
关键词 超辐射 相对论返波管 亚纳秒 高功率微波 粒子模拟 superradiance, relativistic backward wave oscillator, sub-nanosecond, high power microwave, particle simulation
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参考文献8

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同被引文献8

  • 1Ginzburg N S, Novozhilova N Y, Zotova I V, et al. Generation of powerful subnanosecond microwave pulses by intense electron bunches moving in a periodic backward wave structure in the superradiative regime[J]. Phys Rev E, 1999, 60(3) :3297-3304.
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  • 5Korovin S D, Eltchaninov A A, Rostov V V, et al. Generation of Cherenkov superradiance pulses with a peak power exceeding the power of the driving short electron beam[J].Phys Rev E, 2006, 74:016501.
  • 6Yang Wenyuan. Numerical studies on a novel coaxial single-pass superradiance relativistic backward-wave oscillator[J]. IEEE Trans Plasma Sci, 2009, 37(7):1246- 1250.
  • 7董烨,董志伟,杨温渊,周海京,姜幼明.提高相对论返波管超辐射峰值功率的新途径[J].强激光与粒子束,2008,20(7):1167-1172. 被引量:1
  • 8董烨,董志伟,杨温渊,周海京.同轴周期慢波结构色散特性的通用数值解法[J].强激光与粒子束,2009,21(8):1199-1206. 被引量:3

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