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<p>A scheme of a compact Compton terahertz free electron laser pumped by a high-power microwave superradiance pulse, which circulates in a quasi-optical cavity and undergoes multiple backscattering on a moderately relativistic counterpropagating electron beam with an energy of several MeV per electron has been proposed. Both periodic sequences of electron bunches formed by photoinjectors and microsecond electron beams from linear induction accelerators can be used as sources of electrons. The possibility of generating a sequence of multimegawatt coherent terahertz pulses with a sub-gigahertz repetition rate has been shown.</p>

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Use of Superradiance Pulses to Pump Multi-Pass Terahertz Compton Free Electron Lasers

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月1日

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  • N. S. Ginzburg,
  • L. A. Yurovskiy,
  • A. V. Palitsin,
  • I. V. Zotova,
  • Yu. Yu. Danilov,
  • M. I. Yalandin

摘要

A scheme of a compact Compton terahertz free electron laser pumped by a high-power microwave superradiance pulse, which circulates in a quasi-optical cavity and undergoes multiple backscattering on a moderately relativistic counterpropagating electron beam with an energy of several MeV per electron has been proposed. Both periodic sequences of electron bunches formed by photoinjectors and microsecond electron beams from linear induction accelerators can be used as sources of electrons. The possibility of generating a sequence of multimegawatt coherent terahertz pulses with a sub-gigahertz repetition rate has been shown.