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<p>Explosion electromagnetic radiation (EEMR), as an accompanying phenomenon during the explosion processes, has attracted widespread academic attention. However, a specific theoretical model characterizing its generation mechanisms remains unestablished. Addressing this gap, this study developed a theoretical model for atmospheric environments through integrated theoretical and experimental approaches, innovatively constructing research encompassing three core elements: (1) A customized EEMR testing platform with controllable vacuum conditions; (2) An advanced signal processing algorithm integrating signal denoising with electric field strength reconstruction; (3) A theoretical model linking EEMR with detonation transmission. The results indicate: The initial EEMR originates from the process in which the detonation wave transmits into the air. calculated electric field strength decreased from 0.72&#xa0;V/m to 0.45&#xa0;V/m as vacuum degrees increased from 0 to 90% (maximum prediction deviation: 4.3%). The established model quantitatively correlates EEMR with key shockwave parameters (temperature, pressure, density, thickness, velocity etc.), revealing significant correlations between measurement results and calculation results (R<sup>2</sup> &gt; 0.99). This work presents the first physics-based explanation model for EEMR analysis, providing crucial theoretical support for explosion diagnostics and energetic material characterization.</p>

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Research on the mechanism of initial explosion electromagnetic radiation under different vacuum degrees

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年10月8日

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  • Yu Hao,
  • Xuchao Pan,
  • Hong Chen,
  • Hancheng Wang,
  • Wei Du,
  • Yuanpei Meng,
  • Junjie Jiao,
  • Zhong Fang,
  • Yong He

摘要

Explosion electromagnetic radiation (EEMR), as an accompanying phenomenon during the explosion processes, has attracted widespread academic attention. However, a specific theoretical model characterizing its generation mechanisms remains unestablished. Addressing this gap, this study developed a theoretical model for atmospheric environments through integrated theoretical and experimental approaches, innovatively constructing research encompassing three core elements: (1) A customized EEMR testing platform with controllable vacuum conditions; (2) An advanced signal processing algorithm integrating signal denoising with electric field strength reconstruction; (3) A theoretical model linking EEMR with detonation transmission. The results indicate: The initial EEMR originates from the process in which the detonation wave transmits into the air. calculated electric field strength decreased from 0.72 V/m to 0.45 V/m as vacuum degrees increased from 0 to 90% (maximum prediction deviation: 4.3%). The established model quantitatively correlates EEMR with key shockwave parameters (temperature, pressure, density, thickness, velocity etc.), revealing significant correlations between measurement results and calculation results (R2 > 0.99). This work presents the first physics-based explanation model for EEMR analysis, providing crucial theoretical support for explosion diagnostics and energetic material characterization.