Factors controlling measurements of radon mass exhalation rate

被引：38

作者：

Chau, ND ^{[1
]}

Chrusciel, E ^{[1
]}

Prokólski, L ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2005年 / 82卷 / 03期

关键词：

radon mass exhalation rate; sample mass; grain size; water content;

D O I：

10.1016/j.jenvrad.2005.02.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Radon mass exhalation rate of soil samples was measured using an exhalation chamber of 10 dm(3) volume and a Lucas cell. The results show that mass of sample, grain size and water content influence the radon mass exhalation rate. For soil of Ra-226 activity concentration about 2500 Bq kg(-1) and samples within the range from 0.20 kg to 0.50 kg, the radon mass exhalation rate values are higher than those for samples of other masses. The observed radon exhalation rate is an inverse function of the average grain size. At the water content about 6% by weight, the radon mass exhalation rate reaches maximum, then it decreases with both increasing and decreasing of the water content in the sample. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：363 / 369

页数：7

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