摘要
从实验入手，应用高灵敏度、高精度、静态、易于重复观测的ＣＤ－１α杯测氡方法，在室内较理想条件下，研究了氡及其子体自身固有的运移规律。主要发现是：氡及其子体比重很大；但在理想空气中，它向上运移能力与向下运移能力相似，甚或超过，而远远大于横向运移能力。其规律是，氡及其子体向上运移的贡献大于４５％，向下运移不及４５％，扩散作用小于１０％。
This paper studies the migration rule of radon and its daughter under laboratory conditions through experiments by using high sensitive and precise, static, easily repeated CD 1 α cup method to survey radon. The achieved results indicate that despite the very big specific gravity of radon and its daughter, their ability to ascend is similar to the ability to descend under laboratory conditions. Furthermore, the vertical migration ability is much greater than the horizontal. There exists a rule that the ascending ratio exceeds 45%, and the descending ratio is less than 45%, while the ratio caused by diffusion accounts for less than 10%.
出处
《成都理工学院学报》
CSCD
1999年第1期34-37,共4页
Journal of Chengdu University of Technology
基金
国家自然科学基金
国家及地质矿产部科技攻关项目
