...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Building and Environment >Simultaneous determination of the radon diffusion coefficient and the free radon production rate from compact porous emanation media
【24h】

Simultaneous determination of the radon diffusion coefficient and the free radon production rate from compact porous emanation media

机译：同时测定致密多孔发射介质中diffusion的扩散系数和游离ra的产生率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The radon diffusion coefficient and the free radon production rate are important parameters for used to describe the migration of radon in porous emanation media. However, the method currently used to determine these two parameters is complicated. Based on a theory of the radon exhalation by diffusion from the inner and outer surfaces of a circular tube, a method to determine these two parameters in compact porous emanation media was proposed, and an experimental measuring device was designed and manufactured. The experimental device was used to simultaneously measure the radon exhalation rate from the inner and outer surfaces of a quarter-circular tubular concrete block filled with fine-grained uranium tailing sand. The measurements were used to calculate the radon diffusion coefficient and the free radon production rate. The result obtained by using this method shows that accuracy was within the accepted range of experimental error. This method has practical value for the simultaneous determination of the radon diffusion coefficient and the free radon production rate from compact porous emanation media.
机译：don扩散系数和自由ra产生率是用来描述important在多孔发射介质中迁移的重要参数。但是，当前用于确定这两个参数的方法很复杂。基于从圆管内外表面扩散扩散出the气的理论，提出了确定致密多孔发射介质中这两个参数的方法，并设计制造了一种实验测量装置。该实验装置用于同时测量填充有细粒铀尾砂的四分之一圆管状混凝土块的内外表面的ex析出率。测量用于计算the扩散系数和自由the产生率。使用该方法获得的结果表明，精度在可接受的实验误差范围内。该方法对同时测定致密多孔散发介质中diffusion的扩散系数和游离ra的产生率具有实用价值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号