氡及其子体运移规律的实验研究

The Experimental Studies of Rn and its Daughters′ Migration Law

氡及其子体的运移规律研究是基础理论课题之一。从实验入手，通过在室内较理想的条件下所进行的氡及其子体“自身”固有运移规律实验研究，发现氡及其子体在较理想条件下的空气中，纵向运移能力远大于横向运移能力，向上运移能力与向下运移能力相当，甚至有超过的现象。其规律是：扩散作用小，不及１０％；地球引力导致的下沉作用不及４５％；氡及其子体上浮的贡献大于４５％．

Studying the self migration law of Rn and its daughters is one of basic theoretical subjects. The self migration law of Rn and its daughters have been systematically studied in lab whose condition is ideal. Some significant results are achieved. We discovery that the vertical migration ability of Rn and its daughters is much larger than the horizontal, while the ascending ability of Rn and its daughters is as large as the descending ability. The self-migration law of Rn and its daughter is: the ratio of diffusion is less than 10%; the descending ratio purely caused by gravity is less than 45%; the contribution purely caused by buoyancy of Rn and its daughters is more than 45%.