THE INFLUENCE OF ENVIRONMENTAL FACTORS ON THE DEPOSITION VELOCITY OF THORON PROGENY

被引：8

作者：

Li, H. ^{[1
]}

Zhang, L. ^{[2
]}

Guo, Q. ^{[1
]}

机构：

[1] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

[2] Solid Dosimetr Detector & Method Lab, Beijing 102205, Peoples R China

来源：

RADIATION PROTECTION DOSIMETRY | 2012年 / 152卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

RADON; EXPOSURES; SURFACES; RATES; DTPS;

D O I：

10.1093/rpd/ncs194

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Passive measuring devices are comprehensively employed in thoron progeny surveys, while the deposition velocity of thoron progeny is the most critical parameter, which varies in different environments. In this study, to analyse the influence of environmental factors on thoron progeny deposition velocity, an improved model was proposed on the basis of Lai's aerosol deposition model and the Jacobi's model, and a series of measurements were carried out to verify the model. According to the calculations, deposition velocity decreases with increasing aerosol diameter and also aerosol concentration, while increases with increasing ventilation rate. In typical indoor environments, a typical value of 1.26 x 10(-5)m s(-1) is recommended, with a range between 7.6 x 10(-7) and 3.2 x 10(-4) m s(-1).

引用

页码：84 / 88

页数：5

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