A photo-optical and radiophysical study into the destruction process of the internal structure of plexiglass (PMMA) after its exposure to an ionizing electron irradiation and a subsequent external mechanical point impact was carried out. Enlarged macrophotography of the picture of the radiation-mechanical internal destruction of plexiglass was performed at different shooting modes. An analysis and explanation of physics of the formation mechanism of the tree-like branched fractal structure of PMMA destruction is carried out based on the dynamics of impulse compression and a spherical single wave arising at the impact action. The radiophysical parameters of PMMA with radiation damage were measured using the waveguide method in the microwave range.

中文翻译：

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高能电子辐照和机械点冲击后 PMMA 的破坏

对有机玻璃 (PMMA) 在暴露于电离电子辐射和随后的外部机械点冲击后内部结构的破坏过程进行了光学和放射物理研究。在不同的拍摄模式下对有机玻璃的辐射机械内部破坏图片进行了放大的宏观摄影。基于脉冲压缩动力学和冲击作用产生的球形单波，对PMMA破坏的树状分支分形结构的形成机制进行了物理分析和解释。采用波导法在微波范围内测量具有辐射损伤的PMMA的放射物理参数。