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Abstract— <p>Continuous spectrum radiation in the frequency range of 2–4 GHz is generated by a plasma relativistic source. The pulsed radiation is fed into a rectangular waveguide measuring 72 × 34 mm<sup>2</sup> with the substance under study. A piston is inserted into the waveguide, and the refractive index of the substance is determined by the appearance of the interference pattern. The substance in the waveguide can be a gas or have the form of a rectangular bar or a cuvette with liquid. It can be used for spectroscopy of dielectrics.</p>

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Application of Noise Radiation to Determine the Refractive Index of a Substance in the Gaseous Phase and in the Condensed State in the Range of 2–4 GHz

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • I. E. Ivanov

摘要

Abstract—

Continuous spectrum radiation in the frequency range of 2–4 GHz is generated by a plasma relativistic source. The pulsed radiation is fed into a rectangular waveguide measuring 72 × 34 mm2 with the substance under study. A piston is inserted into the waveguide, and the refractive index of the substance is determined by the appearance of the interference pattern. The substance in the waveguide can be a gas or have the form of a rectangular bar or a cuvette with liquid. It can be used for spectroscopy of dielectrics.