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Abstract <p>The brightness and color temperatures of shock-heated fused silica were determined at in the range of thermal radiation wavelengths from 390 to 630 nm using a four-channel pyrometer. The measurements were carried at shock compression pressures of 27.6–50.5 GPa. The radiation spectrum of shock-heated fused silica is shown to be a superimposition of the thermal radiation spectrum and a line spectrum. Baric dependences of the emissivity and radiation absorption coefficient of shock-compressed fused silica were determined.</p>

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Optical Radiation from Shock-Compressed Fused Silica

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • S. A. Bordzilovskii,
  • S. M. Karakhanov

摘要

Abstract

The brightness and color temperatures of shock-heated fused silica were determined at in the range of thermal radiation wavelengths from 390 to 630 nm using a four-channel pyrometer. The measurements were carried at shock compression pressures of 27.6–50.5 GPa. The radiation spectrum of shock-heated fused silica is shown to be a superimposition of the thermal radiation spectrum and a line spectrum. Baric dependences of the emissivity and radiation absorption coefficient of shock-compressed fused silica were determined.