Scholarlink

<p>Conventional radon chambers are difficult to transport for on-site calibration of seismic radon monitors. We developed a portable radon chamber using license-free natural uranium ore cores as a radon source. A dual-pump system adjusted radon concentration from 800 to 4700 Bq/m<sup>3</sup> via flow rate control. The discrepancy between measured and theoretical concentrations was within 5% at lower flow rates and remained below 10% across the full operational range. Concentration uniformity (normalized error &lt; 1) and 24-h stability (&lt; 10% deviation) were demonstrated. Field application reduced systematic errors and improved instrument consistency. This method provides a cost-effective, portable, and adjustable calibration solution.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Application of stratigraphic cores from uranium mining areas as a radon source in portable radon chambers

  • 期刊论文

  • 发表日期：

    2026年7月29日

查看全文
  • Xingyu Tian,
  • Xiongjie Zhang,
  • Liuqing Pang,
  • Wenyi Li,
  • Chuandong Zhu

摘要

Conventional radon chambers are difficult to transport for on-site calibration of seismic radon monitors. We developed a portable radon chamber using license-free natural uranium ore cores as a radon source. A dual-pump system adjusted radon concentration from 800 to 4700 Bq/m3 via flow rate control. The discrepancy between measured and theoretical concentrations was within 5% at lower flow rates and remained below 10% across the full operational range. Concentration uniformity (normalized error < 1) and 24-h stability (< 10% deviation) were demonstrated. Field application reduced systematic errors and improved instrument consistency. This method provides a cost-effective, portable, and adjustable calibration solution.