Simulated equilibrium factor studies in radon chamber

Tieh Chi Chu*, Ho Ling Liu

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

19 Scopus citations

Abstract

A series of experiments have been conducted to study the influences of environmental parameters on the equilibrium factor. Most of them were carried out in a walk-in type chamber. The deposition velocity was calculated using the Jacobi model. The ranges of the environmental parameters studied in the experiments are humidity 30-90% r.h. and radon concentration 2-40 kBqm-3. The aerosol sources included electric fumigator, mosquito coil, incense, and cigarette with the particle concentration 2000-6500 cm-3 and the attachment rate 10-350 h-1. The results of the experiment show that the equilibrium factor tends to decrease as the radon concentration increases. On the other hand, the equilibrium factor tends to increase as the humidity increases, and so is the increasing attachment rate. Of all the parameters mentioned above, the influence that aerosols have on the equilibrium factor is the predominant factor. The calculated deposition velocity for the unattached fraction of radon daughters tends to increase as the radon concentration increases. However, it tends to decrease as the humidity increases.

Original languageEnglish
Pages (from-to)543-550
Number of pages8
JournalApplied Radiation and Isotopes
Volume47
Issue number5-6
DOIs
StatePublished - 1996
Externally publishedYes

Fingerprint

Dive into the research topics of 'Simulated equilibrium factor studies in radon chamber'. Together they form a unique fingerprint.

Cite this