The influence of non-uniform particle deposition on the Po-218 diffusion coefficient measured with the "two-filter" method

Authors
Vargas, A Ortega, X
Citation
A. Vargas et X. Ortega, The influence of non-uniform particle deposition on the Po-218 diffusion coefficient measured with the "two-filter" method, J AEROS SCI, 32(11), 2001, pp. 1389-1395
Citations number
17
Categorie Soggetti
Chemical Engineering
Journal title
JOURNAL OF AEROSOL SCIENCE
ISSN journal
00218502 → ACNP
Volume
32
Issue
11
Year of publication
2001
Pages
1389 - 1395
Database
ISI
SICI code
0021-8502(200111)32:11<1389:TIONPD>2.0.ZU;2-K
Abstract
The influence of non-uniform Po-218 density distribution on the downstream filter was estimated on the basis of a numerical analysis of the aerosol pa rticle transport inside a tube and of a numerical estimation of the efficie ncy for alpha radioactive particle detectors. For published diffusion coeff icients of 0.103, 0.067 and 0.045 cm(2) s(-1), the error was found to be +2 0%, +25% and +26% respectively, compared with a uniform deposition. (C) 200 1 Elsevier Science Ltd. All rights reserved.