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<p>Based on a study of radon release from southeastern Hunan granite, a Python-based fracture extraction software was independently developed to analyze the fractal characteristics of surface fractures. Fractal dimensions were 1.7560–1.8664, indicating high complexity. The study found that the correlation between the radon exhalation rate and fracture fractal characteristics was weak before standardization (0.105). However, after standardization by uranium content and radium activity, the correlation significantly increased (to 0.305 and 0.417, respectively), confirming that standardization more accurately reveals the relationship between fracture characteristics and radon exhalation rate. Both are greatly influenced by uranium and radium content.</p>

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Influence of fractal characteristics of surface fractures in granite on radon exhalation rate

  • 期刊论文

  • 发表日期：

    2025年11月4日

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  • Yan-shi Xie,
  • Qing-shuang Guo,
  • Bo-yang Wang,
  • Shi-li Han,
  • Zheng-qing Wang,
  • Hai-yang He,
  • Shan Liu,
  • Guo-liang Ai

摘要

Based on a study of radon release from southeastern Hunan granite, a Python-based fracture extraction software was independently developed to analyze the fractal characteristics of surface fractures. Fractal dimensions were 1.7560–1.8664, indicating high complexity. The study found that the correlation between the radon exhalation rate and fracture fractal characteristics was weak before standardization (0.105). However, after standardization by uranium content and radium activity, the correlation significantly increased (to 0.305 and 0.417, respectively), confirming that standardization more accurately reveals the relationship between fracture characteristics and radon exhalation rate. Both are greatly influenced by uranium and radium content.